2026 Season 4 Initial Release Notes [2026.09.09.01]

The iRacing 2026 Season 4 Release Build is moving out onto the track! This is one of four major annual releases for iRacing, and it adds new content, features, upgrades, and a hauler-full of fixes and tweaks. iRacing 2026 Season 4 officially starts on September 15th at 0000 UTC!

iRacing welcomes FOUR brand new cars into our garage, including the Aston Martin Valkyrie AMR-LMH, two versions of the Caterham - Academy and 420R, and the Gen 4 Grand National. A diverse set of vehicles showcasing the many ways drivers race! We’ve also added THREE entirely re-scanned and re-built tracks to update the iRacing 2026 landscape: Road America, Mid-Ohio Sports Car Course, and The Milwaukee Mile. Each of these tracks fully replace the older versions and are top-notch racing locations. Both Summit Point Raceway and Road Atlanta have also received a major artwork update, taking their appearance into the modern age. Finally, we plan to introduce a new system that more authentically replicates real-world multiclass race starts: dedicated pace cars for each car class. Please note that this feature must pass a final shakedown in Week 13’s iTested series before officially joining the IMSA iRacing Series.

Our physics processing engine has been upgraded to allow for multi-threading, making object interactions more accurate than ever before. Car Rule Sets have been made available on dozens more vehicles, providing even more structure and options to the ways you can race. Our vehicle development team has completed a significant vehicle mechanics overhaul for both the Global Mazda MX-5 Cup and the Sprint Car - these cars should feel nearly brand new, and drive much closer to their real-life counterparts.

The iRacing Simulation has been updated from stem to stern for complete UTF8 character support - this includes chat messages, display names, and all files associated with iRacing such as Replays, Setups, and Camera sets filenames. A new UI element has been added: Reference Car UI, which allows you to see live controls inputs from a reference car in solo sessions so you can learn and advance your own technique. TWO brand new UI Widgets are now available: Pit Summary which provides control and visibility to everything related to a pit stop, and Car Damage for a select few cars which displays the general health of your vehicle. The F9 Black Box has been reimagined as a Quick Access panel to add easy use for a variety of impactful options. A new UI Mode is also now available: “Minimal” where you can strip down your interface to only the essentials and anything else you’d like to keep pinned. Following up from last Season, the Fuel Calculator Widget algorithms have received more data and have improved estimates. The Track Map Widget has also been updated with some quality improvements for ease of use.

The iRacing Launcher Team has completed a full rebuild of the Team Registration process, making it easier than ever to clearly see how your team is registered for an event, and what everyone is signed-up for. The Leagues area has been refreshed, leaving runway for upcoming improvements. Past Results may now be viewed as individual pages. When launching a solo session from an Official Session, you may now also carry in the BoP from the event to your test session, allowing you to practice better. The team also completed a re-build of the iRacing Companion App recently which will allow for even better future development - if you haven’t gotten the latest updates for it yet, be sure to grab them from your device’s preferred app store!

Finally, AI racing has been expanded to EIGHT new cars, including: Aston Martin Valkyrie AMR-LMH, Caterham - Academy and 420R, Gen 4 Grand National, Chevrolet Corvette C7 Daytona Prototype, Formula Renault 2.0, [Legacy] BMW Z4 GT3, and [Legacy] Riley MkXX Daytona Prototype - 2008. AI racing is also now available at NINETEEN new track configs, including: Auto Club Speedway - Competition, Interior, and Moto, Federated Auto Parts Raceway at I-55, Kansas Speedway - Infield Road Course and Road Course, Mid-Ohio Sports Car Course - All configs, Oswego Speedway - Dirt, Road America - All configs, The Milwaukee Mile - Both configs, and USA International Speedway - Dirt. Rain racing availability comes pre-loaded with the new Aston Martin Valkyrie AMR-LMH and both Caterhams as well as all non-Oval new track configs.

Season highlights include:

Aston Martin Valkyrie AMR-LMH

Caterham - Academy and 420R

Gen 4 Grand National

Road America (Updated Laserscan & Fully Rebuilt)

Mid-Ohio Sports Car Course (Updated Laserscan & Fully Rebuilt)

The Milwaukee Mile (Updated Laserscan & Fully Rebuilt)

Summit Point Raceway (Major Art Update)

Road Atlanta (Major Art Update)

Multiple Pace Cars Multiclass Starts available in select official series, beginning with the IMSA iRacing Series

Multi-threaded Physics Processing

Full UTF8 character support

New SIM UI Widget: Pit Summary

New SIM UI Widget: Car Damage (Global Mazda MX-5 Cup, Toyota GR86, BMW M2 Racing (G87), Renault Clio R.S. V, Ray FF1600, Mini Stock, and Lucas Oil Off Road Pro 2 Truck)

New Sim UI Black Box: F9 Quick Access

Sim UI Update: Minimal/Pinned UI Mode

Sim UI Update: Fuel Calculator Widget improvement

Sim UI Update: Track Map updates

Global Mazda MX-5 Cup (significant vehicle update)

Sprint Car (significant vehicle update)

Car Rule Sets are now supported on 81 vehicles

iRacing Launcher Feature: Team Registration Refactor

iRacing Launcher Feature: Bring Official Session BoP into Test Drive

Rain racing for THREE more vehicles! (Aston Martin Valkyrie AMR-LMH, Caterham - Academy and 420R)

AI Racing is now available with EIGHT new cars: Aston Martin Valkyrie AMR-LMH, Caterham - Academy and 420R, Gen 4 Grand National, Chevrolet Corvette C7 Daytona Prototype, Formula Renault 2.0, [Legacy] BMW Z4 GT3, and [Legacy] Riley MkXX Daytona Prototype - 2008

AI Racing is available at NINETEEN new tracks: Auto Club Speedway - Competition, Interior, and Moto, Federated Auto Parts Raceway at I-55, Kansas Speedway - Infield Road Course and Road Course, Mid-Ohio Sports Car Course - All configs, Oswego Speedway - Dirt, Road America - All configs, The Milwaukee Mile - All configs, and USA International Speedway - Dirt

Hundreds of the highest quality vehicle setups

Visit our 2026 Season 4 features page here: https://www.iracing.com/seasons/2026-s4/

Full 2026 Season 4 Release details are below.

iRACING Launcher

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Updater

Now the iRacing Launcher correctly re-launches the iRacingUI when requested by the iRacing Updater after installing packages. Also, we make sure we don't do any download status updates to send to the UI once downloading completes.

Teams

The iRacing Launcher Team has completed a re-build of the Team Registration window! The window layout has been optimized, team member listings and roles are now more clear, and the warnings for fair-share driving and registering as a solo driver have been improved. We have also added a Verification Step, allowing you to see the list of drivers being registered and for which team before finishing things up.

Leagues

The Leagues area of the iRacing Launcher has been rebuilt, with a focus on things behind the scenes. You won’t see anything different now, but we have a plan for future development here!

Results

Results from past Sessions may now be viewed on their own pages and with links!

Browse past results and season standings for any series directly on pages, use deep links to bookmark, share, or navigate faster to series results and season standings.

Test Drive

When selecting to run a Test Drive based off of an Official Session, you may now enter into that Test Drive with the BoP parameters for your selected car automatically loaded and applied. This gives you a much more exact test driving experience for that Official Session!

Localization

The iRacing Launcher adds a new selectable language: Spanish - Mexico!

In the language selection dropdown, you may now select “es-MX (Spanish - Mexico)” to use the iRacing Launcher in Mexican Spanish.

Paint Booth

The following sponsors have been added to the Paint Booth:

ACCEL

AEM

Card Gorilla

DEMCO

Greenfield Pavement

HendrickCars.com

MANDO

Mitti

Mr. Gasket

MSD

Night Owl Companies

NOS

One Ethanol

Precision Vehicle Logistics

RacePak

RaceQuip

Real Street Performance

ROMA/Performance Foodservice

SciAps

Superchips

Tablo TV

TAP and Sons

Wilde

Willscot

The following sponsors have received logo updates or additional colorways in the Paint Booth:

Ally

Fifth Third

Grillo’s Pickles

Hellmann’s

Horizon Hobby

JBL

Liquid Death

Macc Door Systems

Rackley Roofing

Roto-Rooter

Safety-Kleen

Stilo

TitleMax

WeatherTech

Whelen

iRacing Simulator

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AI Racing

AI Drivers are now ready to race with the following new vehicles:

Aston Martin Valkyrie AMR-LMH

Caterham - Academy and 420R

Gen 4 Grand National

Chevrolet Corvette C7 Daytona Prototype

Formula Renault 2.0

[Legacy] BMW Z4 GT3

[Legacy] Riley MkXX Daytona Prototype - 2008

AI Drivers are now ready to race at the following new track configs:

Auto Club Speedway - Competition, Interior, and Moto

Federated Auto Parts Raceway at I-55

Kansas Speedway - Infield Road Course and Road Course

Mid-Ohio Sports Car Course - All configs

Oswego Speedway - Dirt

Road America - All configs

The Milwaukee Mile - All configs

USA International Speedway - Dirt

AI Drivers have received additional special training for racing with the following vehicles:

<Car Class> GT3 Cars

<Car Class> GTP Cars

Dallara P217

Global Mazda MX-5 Cup

NASCAR Cup Next Gen Class (at Dirt Oval tracks)

Sprint Car

AI Drivers have received additional focused training for racing at the following track configs:

Circuit of the Americas - NASCAR West

Qualcomm Circuit (Naval Base Coronado)

Road Atlanta - All configs

Sebring International Raceway - International, Club, and Modified

Sonoma Raceway - All Configs except Oval

AI Drivers have completed their 2026 Summer School Programs. Curriculum included the following materials:

Advanced Oval Mathematics - High/Low Lane Performance Differentials

The Half-Waterglass Theory: The Impact of Optimism on Racing and Daily Life

Quentin Quarry’s Quarterly Quite Quality Quick Qualifying Quiz

Fixed several issues with AI Racing, including:

Fixed a crash issue that could occur during a session transition between race servers.

Fixed an issue where the Race Results screen shown after an offline AI Race would not work correctly for a Heat Race Session.

Physics

Multi-threaded physics processing has been enabled.

We have refactored and multi-threaded the core physics update loop, an internal initiative we call ‘Physics Islands.’ By slicing the physics workload and parallelizing the end of the physics tick, calculations are now distributed cleanly across available CPU threads. While single-car test sessions will feel as crisp as ever, the gains in heavy traffic are massive: in full-field races, crowded multi-car battles, and large AI grids, CPU physics overhead drops by 50% or more across a wide range of hardware.

Improved how changes in fuel mass impact the center of gravity of vehicles.

Tire preparation is now performed for every reset of the car during a lone qualifying session on road courses as opposed to only when the car first enters the world.

Race Control

Pending a successful test in Week 13’s iTested series, multiclass starts with per-class pace cars will roll out to select official series, beginning with the iRacing IMSA Series. We will continuously expand support to other official series, Hosted iRacing, and AI Racing in future updates.

Start Zones have been enabled and added at over fifty tracks! These tracks include:

Adelaide Street Circuit

Algarve International Circuit - Grand Prix

Autódromo Hermanos Rodríguez (Mexico City) - Grand Prix

Autodromo Internazionale Enzo e Dino Ferrari - Grand Prix

Autódromo José Carlos Pace - Grand Prix

Autodromo Nazionale Monza - Grand Prix

Barber Motorsports Park

Brands Hatch - Grand Prix & Indy

Canadian Tire Motorsports Park

Charlotte Motor Speedway - Roval 2025

Circuit de Lédenon

Circuit de Spa-Francorchamps - Grand Prix Pits

Circuit des 24 Heures du Mans

Circuit Gilles Villeneuve

Circuito de Navarra - Speed Circuit

Daytona International Speedway - Road Course

Fuji International Speedway - Grand Prix and No Chicane

Hockenheimring Baden-Württemberg - Grand Prix

Homestead Miami Speedway - Road Course B

Indianapolis Motor Speedway - Road Course

Lime Rock Park - Classic

Long Beach Street Circuit

Mid Ohio Sports Car Course - Full, Chicane, and Short

The Milwaukee Mile - Road

Mobility Resort Motegi - Grand Prix

Motorsport Arena Oschersleben - Grand Prix

Mount Panorama Circuit

Nürburgring Combined (ALL)

Nürburgring Grand-Prix-Strecke - Grand Prix

Nürburgring Nordschleife - Industriefahrten

Okayama International Circuit - Full Course

Oran Park Raceway - Grand Prix

Oulton Park Circuit - International

Phillip Island Circuit

Qualcomm Circuit (Naval Base Coronado)

Red Bull Ring - Grand Prix

Road America (ALL)

Road Atlanta - Full Course

Rudskogen Motorsenter

Sebring International Raceway - International

Shell V-Power Motorsport Park at The Bend - International Circuit

Silverstone Circuit - Grand Prix

Snetterton Circuit - 300

St. Petersburg Grand Prix

Summit Point Raceway - Summit Point Raceway

Suzuka International Racing Course - Grand Prix

Tsukuba Circuit - 2000 - Full

Virginia International Raceway - Full Course

Watkins Glen International - Boot

Willow Springs International Raceway

Winton Motor Raceway - National

Some more details on Road Course Start Zones - for both Single and Multiclass:

When Start Zones are selected for the active session, race participants will be shown the pace speed at all times during the rolling grid pre-race pace lap. The pace value will be shown in grey so drivers know the exact speed of the pace car. As cars approach the pit lane entry they should be formed up into an orderly grid and maintain the pace speed. After the pace car pulls into the pit lane, the pace speed will change from grey to yellow. When the pace speed is yellow, race control pace speed control is now active. Any attempts to jump the start by accelerating early will receive a jumped start penalty. All rows must maintain the pace speed until Barney, Legendary Flagman, drops the green flag to signal that the race has started.

The message for failing to meet driver change requirements for an event has been updated.

Fixed an issue where cars with higher car numbers could be delayed when entering Qualifying.

Pit Stops

Updated a variety of pitstop procedures to more accurately reflect the number of available wheel guns, tire change times and jacking procedures. See individual class and car notes for more details.

Graphics

Smoke-like effects have been converted to use the PopcornFX particles systems.

This conversion includes vehicle smoke, tire smoke, dust, and water puffs. Each of these should visually appear much as they did before, but with some enhancements for rendering performance, visual density, brightness, and behavior with light sources.

Slightly increased the rate of dirt, dust, grime, smoke, rubber, and other particulate build-up on racecar windshields.

Rain particle effects have been updated with new rain drop shapes and sizes. The perceived velocity of raindrops now also changes based on camera distance, and distance fade is now influenced by particle size, opacity, wind, and wind gusts. Also improved the wind speed and direction sampling applied to visible particles based on the data for the visible area.

A rain mist effect has been added.

Shaders and color variations for visiting race weekend vehicles have been updated.

The IMSA font on cars has been updated.

Fixed an issue where tire marks were showing up from other cars in Lone Qualifying sessions.

Fixed an issue where some track-side objects could appear excessively bright at night.

Virtual Reality

VR screen width and screen depth options are now adjustable in real-time.

They should not require a Sim restart to take effect.

User Interface

On the session screen the existing Toggle UI Visibility (space bar by default) has been renamed Cycle UI Visibility Mode. It will now cycle between the UI between normal, minimal (only pinned and required widgets), and completely hidden.

Note: if no widgets are pinned the minimal mode is skipped and the behavior is the same as before.

On the Drive Screen a new keybind has been added: Toggle Minimal Drive UI. This behaves similar to the session binding, but will never go to a totally hidden mode.

Note: as on the session screen the minimal mode will only be entered if at least one widget is pinned.

Widgets can be pinned in edit layout (alt k) mode by either clicking the pin on the header of each item or by clicking the pin in the widget's row in the widget editor.

Some widgets do not have a pinning option. This is typically because they are required and so cannot be unpinned.

The plan is to add this pinning to the session screen tabs, but things like the penalties and flags display follow the rule above.

A new UI element has been added: Reference Car UI!

In Time Trial, Time Attack, and Test Drive, you may now enable the Reference Car UI element. This is a floating 2D billboard within the 3D space of the Simulator above your target reference car. This display shows live driver controls inputs, including throttle and brake application, allowing you to analyze the driver’s technique and advance your own driving.

There is presently a known issue where the Reference Car UI element does not appear for users with VR - we are still investigating, and will be sure to get this fixed in a Patch!

A new Car Damage widget has been added!

The Car Damage widget is a graphical representation of the spotter damage report to visually see this approximate state of physical damage to the car. The widget displays a wireframe version of your vehicle, and areas of the mesh will change color to indicate the level of damage sustained, if any, in that area. It is important to again note that this is approximate and not artificially precise.

Green indicates that the area is completely un-damaged, yellow is minor damage, orange is some damage, red is critical damage, gray is for when the part is completely missing. White is for a part that can not be damaged, such as the tub.

The bottom shows information for your wheel/suspension damage.

The top-right side also has some iconography for when the spotter reports engine damage, high temps, and/or fluid leaks.

The Car Damage widget will initially only be available for a select set of vehicles, including: Global Mazda MX-5 Cup, Toyota GR86, BMW M2 Racing (G87), Renault Clio R.S. V, Ray FF1600, Mini Stock, and Lucas Oil Off Road Pro 2 Truck.

A new Pit Summary widget has been added!

The Pit Summary widget consolidates almost all the info you might need about making a pit stop into a single place. It displays where you and your pit stall is along pit road, tow time, fast repairs, service time, required and optional repairs, tire changes, fuel, and how long you’ve been in the pits. If you have any penalties to serve, a row will be added to the widget display, too. You can also manipulate the controls within the widget to plan and execute your pit stops!

It is now a Quick Access menu to multiple smaller areas with quickly tunable values.

Navigation up and down is done using the normal controls.

Using the increment or toggle button on a top level item will enter that sub-menu.

Using the inc/dec buttons while in a sub-menu item is focus engaged will increment and decrement the value.

Added several improvements for the Session Screen and Blackbox in Multiclass sessions:

Added a new Class column to Session Results.

Fixed an issue with the Session Results not properly filtering by class when not sorted by car number.

Session Driver Focus Panel now shows Class Position / Number of Positions in Class.

Lap Timing Blackbox now shows Class Position.

Standings Blackbox can now filter between classes to match with the Standalone Widget version. It defaults to the player's class.

A variety of updates have been made to improve the Fuel Calculator Widget!

The Fuel Calculator algorithms have been tuned using data collected this past season for improved estimates. We will continue to strengthen the calculations as we get more data in the future.

The Fuel Calculator Widget now works for non-driver teammates.

Laps left also matches what is shown in the Black Box UI, whereas previously it was slightly off.

Fixed the race length we use to calculate stops to always use the shorter of the time-based and lap-based lengths.

Stabilized the pit window calculations and fixed an issue where data may not have been generating correctly for timed races.

Fixed some logic to provide better and more stable estimates for the pit window. Also fixed counting pre- and post-race segments as valid in some edge cases.

Fixed an issue where the Fueled to End graphics were malformed.

A variety of updates have been made to the Track Map Widget!

Joker and Start paths for Rallycross tracks have been added.

Larger sizes are now allowed.

Fixed an issue where the lap up/down indicators were disappearing as soon as the first driver completed the event, instead of waiting for the player to cross the finish line.

The lapped car outline will now display a bit earlier so when a player gets blue flagged they know who is about to lap them.

UI support has been added for 16 car classes.

We now show a color and a shape for each of the 16 car classes. The Session Results menu, Black Box Relative and Standings, and Track Map all support the new shapes.

UTF8 character support has been fully enabled for file names and paths.

You should be able to use any characters for your Windows login name, the path where the Simulator is installed, and any user provided file names (camera files, replays, setups, etc.).

Added options to adjust the Reference Car Offset and Opacity in the Drive screen.

For the Controls Input Widget, now there is immediate visual feedback while you are shifting gears, even before the actual gear change is accepted. When shifting up, you will see yellow bars above the current gear momentarily, and when shifting down, the bars will appear below the current gear. This gives users peace of mind that hardware is working and inputs are being detected in the Sim.

The visibility of this can be toggled in the widget editor.

For HUD Profiles, we'll now limit the height of the profile picker to prevent it running off screen.

VR Screen Width and Screen Distance UI Options can now be changed without requiring Simulator restart.

Removed the " character from the tire info black box.

Changed (OMI) to (IMO) for right front/rear tires in F5 tire info box.

For Session Screen Results, Standings are now class aware.

Fixed several issues with the Garage area, including:

Fixed alignment of text labels in the garage. Centered text should now be properly centered.

Fixed a text clipping for long checkbox labels (such as the vinyl wrap options on the IR18).

Fixed an issue where a personal setup named "baseline.sto" could not be deleted.

Fixed an issue where Laps To Go wasn't updating on the session screen.

Fixed an issue where some Rookie iRatings were incorrectly visible.

Controls

360 Hz support has been added to Conspit wheels.

Spotter/Crew Chief

Fixed an issue where your spotter could notify you about "nearby" cars that existed in other run groups. While it is cool he can see things in parallel universes, that's not very helpful for your rejoin process.

Fixed an issue with triggering stale or unintentional spotter calls.

Spotter Packs

All English language spotter packs have been prepended with "English-".

A new Chinese (Mandarin) Spotter Pack has been added, using a female voice.

Very special thanks to Lehaoqi and Shi Yuqi for the hard work on this!

A new Chinese (Mandarin) Spotter Pack has been added.

Very special thanks to Yingjie Feng for the hard work on this!

The Spanish Spotter Pack, Spanish-Ari_Cejas, has been updated.

The Japanese Spotter Pack, COEIROINK_Aoba, has been updated.

All additional spotter packs will no longer be stored in the iRacing installation package by default.

Spotter Packs are still fully available - they are just not in the default installer.

Replay

Opponent car dashboards have been updated to display more representative values.

Telemetry

A new value, "WeekendInfo:AltAssetTag:" has been added to Telemetry. This can be one of the following: (blank), IMSA, NEC, NOTC, PMNA, INDY, NOABSTC, NOABS, ROOKIE, WSC2017, DTM.

Sporting Code

The iRacing Sporting Code has been updated. The following adjustments were completed:

Documentation for multiclass starts with start zones has been added, and expanded some existing info about multiclass racing and start zones.

Clarified Safety Rating adjustments for Practice Sessions.

More clearly defined that Barney, Legendary Flagman, starts the race.

Cars

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<Car Class> ARCA 2025 Series

iRacing setups have been updated.

<Car Class> GT1

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously. For the NOTC and NOABSTC Rule Sets, TC is disabled.

Pit procedures will now always use 2 wheel guns which will allow any pair of 2 tires to be changed simultaneously for a cost of 10 seconds. Total time to change 4 tires is unchanged for all rulesets (20 seconds). Repairs may not be conducted during fueling when the default ruleset is in use.

<Car Class> GT3

Per the default Car Rules, fuel must now be completed prior to any ARB and wing adjustments being performed. However, the wing may now be adjusted simultaneously with ARB and tire adjustments.

Pit procedures will now always use 2 wheel guns which will allow any pair of 2 tires to be changed simultaneously for a cost of 10 seconds. Total time to change 4 tires is unchanged for all rulesets (20 seconds, except DTM where it is 7 seconds). Repairs may not be conducted during fueling when the default ruleset is in use.

Fixed an issue where the second driver in a team race could get stuck on wet TC settings after the first driver started the race on wet tires and then changed to dry.

iRacing setups have been updated.

<Car Class> GT4

When the NEC Rule Set is in use, the fuel fill rate is slightly slower - a full tank should now take 120 seconds.

Pit procedures will now always use 2 wheel guns which will allow any pair of 2 tires to be changed simultaneously for a cost of 18 seconds. Total time to change 4 tires is unchanged for all rulesets (35 seconds). Repairs may not be conducted during fueling when the default ruleset is in use.

<Car Class> GTE

Added ruleset support for IMSA, NoTC, and noABSTC rulesets.

For the default ruleset, tires and fuel are performed sequentially. 34 seconds to fill the tank, 20 seconds to change all 4 tires.

Enforcement of TC lockouts have been reinforced when using either NoTC or NoABSTC rulesets.

<Car Class> GTP

Adjusted the backfire values so all cars in the class shoot flames more frequently.

iRacing setups have been updated.

<Car Class> LMP1

Support has been added for car Rule Sets!

<Car Class> NASCAR Gen 4 Series

Drafting parameters at ovals have been updated. We continue to monitor these changes.

Rear frame collision hulls have been adjusted to allow for more realistic pushing.

Minimum tire pressure has been increased to 23 PSI.

iRacing setups have been updated.

<Car Class> NASCAR Cup Series Gen 7

iRacing setups have been updated.

<Car Class> NASCAR Legends Series

iRacing setups have been updated.

<Car Class> NASCAR O'Reilly Series

iRacing setups have been updated.

<Car Class> NASCAR Truck Series

iRacing setups have been updated.

<Car Class> Supercars - Gen 3

iRacing setups have been updated.

<Car Class> Street Stock

For drafting parameters, reduced the lead car bubble effect.

iRacing setups have been updated.

<Car Class> TCR Cars (Touring Cars)

Brake bias valve may now be adjusted in Fixed Setup racing.

Slightly improved the speed of tire changes in pitstops. A full 4 tire pitstop should now take 40 seconds.

When the NEC Rule Set is in use, the fuel fill rate is slightly slower - a full tank should now take 120 seconds.

Pit procedures will now allow any pair of 2 tires to be changed simultaneously for a cost of 20 seconds. Total time to change 4 tires is unchanged for all rulesets (40 seconds). Repairs may not be conducted during fueling when the default ruleset is in use.

iRacing setups have been updated.

<Car Class> [Legacy] GT3

Pit procedures will now always use 2 wheel guns which will allow any pair of 2 tires to be changed simultaneously for a cost of 10 seconds. Total time to change 4 tires is 20 seconds for all rulesets except DTM where it is 7 seconds. Repairs may not be conducted during fueling when the default ruleset is in use.

Acura ARX-06 GTP

Adjusted the Balance of Performance for the car.

Acura NSX GT3 EVO 22

2026 Season 4 BoP changes: Fuel economy efficiency has been reduced.

ARCA Menards / Gen 4 Grand National / Gen 4 Cup

The [Legacy] status has been removed from this car package, and its contents have been reorganized. It now includes the following vehicles:

ARCA Menards Chevrolet Impala

Gen 4 Grand National

[Legacy] Gen 4 Cup

All iRacing Members who had access to this package of vehicles will retain that access, and also be granted access to the new Gen 4 Grand National vehicle!

New Car!

The Gen 4 Grand National, an Asphalt Oval car, is now ready for racing!

The Gen 4 Grand National car represents the tier one level down from the top stockcars during the 4th generation era between 1992 and 2006, before the transition to the Car of Tomorrow (CoT). While visually sharing the same aerodynamic sheet metal bodies as their Cup Series counterparts, the Grand National cars were built on a shorter 105-inch wheelbase. Under the hood, the series mandated a 9:1 compression ratio and smaller 390 CFM carburetors, capping the 358 cubic-inch V8s to around 600-650 horsepower. Lighter, slightly less powerful than Cup Series cars of that era, these highly agile cars required massive momentum preservation and smooth pedal inputs to maximize performance.

Like all iRacing stockcars, this car will automatically equip a specialized dirt racing tire if it is brought to a Dirt Oval track.

AI Drivers are ready to race with the Gen 4 Grand National!

Aston Martin DBR9 GT1

This car may now be fully repaired when damaged and repair times have been adjusted.

Aston Martin Valkyrie AMR-LMH

New Car!

The Aston Martin Valkyrie AMR-LMH, a new Sports Car, is ready for racing!

When Aston Martin committed to the modern generation of prototype race cars back in 2019, fans around the world rejoiced—but it wasn’t until half a decade later that fans would finally see the fruits of their labors. Fortunately, most fans would determine that the Valkyrie AMR-LMH was worth the wait when they first heard the roar of its 6.5-liter, naturally aspirated V12 engine. But getting 670 horsepower out of the first V12 used in top-tier prototype racing in nearly 15 years isn’t the only thing that makes this car unique. Unlike many of its compatriots in IMSA and other sports car series, the Valkyrie forgoes a hybrid system. Likewise, the Adrian Newey-designed car is one of the only prototypes at any level to have a road-going version for consumers. The car made its competitive debut in Qatar in 2025 and capped off that year with its first IMSA podium in the Petit Le Mans.

This car comes ready for rain racing, with both dry and wet tire compounds.

AI Drivers are ready to race with the Aston Martin Valkyrie AMR-LMH!

Aston Martin Vantage GT4

Differential preload adjustment has been added to the garage.

Audi 90 GTO

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously.

Audi RS3 LMS TCR

Support has been added for car Rule Sets!

The Car Rules Sets match the active TCR class.

BMW M Hybrid V8

Some paint rules have been updated.

Car info copy has been updated.

Fixed an issue with the pit speed limiter’s background color. When the pit speed limiter is engaged and drivers are not in pit lane, the background will turn:

Green if the driver’s speed is less than 0.5% over the pit speed limit.

Yellow if the driver’s speed is between 0.5% - 15% over the pit speed limit.

Red if the driver’s speed exceeds 15% over the pit speed limit.

BMW M2 CS Racing (F87) - 2020

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be performed at 50% the usual rate. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

Slightly slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

Pit procedures will now always use 2 wheel guns which will allow any pair of 2 tires to be changed simultaneously for a cost of 20 seconds. Repairs may not be conducted during fueling when the default ruleset is in use.

Fixed an issue with the wet throttle map option.

BMW M2 Racing (G87)

Baseline setup power class is set to 5.

Power class may be adjusted during pitstops only.

For the NEC Rule Set, power class is locked to 5.

Fuel burn rate has been increased to match real-world driver feedback.

Slightly slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

Pit procedures will now always use 2 wheel guns which will allow any pair of 2 tires to be changed simultaneously for a cost of 40 seconds. Repairs may not be conducted during fueling when the default ruleset is in use.

Updated the paint rules for the fixed paint scheme.

BMW M4 F82 GT4

Support has been added for car Rule Sets!

Parameters match the active GT4 class.

Adjusted fuel tank capacity to approximately match the active GT4 class.

BMW M4 GT3

2026 Season 4 BoP changes: Fuel economy efficiency has been reduced.

Altered the shift lamp so it progresses from left-to-right to match the current car. The side pit limiter lights have also been activated.

Cadillac CTS-V Racecar

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will take 120 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

Caterham - Academy and 420R

Two New Cars!

The Caterham Academy and Caterham 420R are a pair of new Sports Cars, and are ready for racing!

BOTH cars ship in the same package - so paying the price of one car gets you two!

(Caterham Academy) - For more than 30 years, Caterham’s Academy series has been a mainstay of British motorsport, welcoming thousands of novice drivers since its inception in 1995. Racers receive a fully guided experience as they enter the world of motorsport, and they get to keep the car at the end of the season—which they can then upgrade to compete in Caterham’s higher-level championships. While it’s part of a popular racing series, Caterham’s Academy-spec car happens to be road-legal. It produces 130 horsepower out of its Horse HR13 engine, while featuring a six-speed gearbox and limited-slip differential. The tire spec is also designed for low grip in order to teach drivers strong car control skills.

(Caterham 420R) - Caterham’s premier race machine, the 420R, is designed exclusively for racing. The official car of the Seven Championship UK, the 420R can be frequently spotted at top British tracks like Silverstone, Brands Hatch, and Donington—and even tracks like Spa, Nurburgring, and Bushy Park Barbados have joined in on the fun over the years. Equipped with a two-liter Ford Duratec engine and six-speed sequential gearbox, the 420R produces more than 190 horsepower at a weight of just 635 kg (1,400 lbs). It features bespoke Bilstein race dampers and Nova Motorsport tires, with unique specifications for both slick and wet conditions. As the spec car of Caterham’s official national championship in the UK, the 420R is often supported by professional teams that keep it in top condition.

(Caterham Academy) - This car comes ready for rain racing, with a single tire compound adept at handling both dry and wet surfaces.

(Caterham 420R) - This car comes ready for rain racing, with both dry and wet tire compounds.

(BOTH) - AI Drivers are ready to race with both the Caterham Academy and the Caterham 420R!

(BOTH) - IMSA and NEC car Rule Sets are available for both cars. For the NEC Rule Set, fueling will take 120 seconds.

Chevrolet Corvette C6.R GT1

This car may now be fully repaired when damaged and repair times have been adjusted.

Chevrolet Corvette C7 Daytona Prototype

AI Drivers are ready to race with the Chevrolet Corvette C7 Daytona Prototype!

Support has been added for car Rule Sets!

Chevrolet Corvette Z06 GT3.R

2026 Season 4 BoP changes: Fuel economy efficiency has been reduced, and engine torque slightly reduced.

The rear suspension system has been updated.

Dallara IL-15

iRacing setups have been updated.

Dallara IR18

Ignition control has been adjusted to prevent repeated presses from heating up engine oil for a performance advantage prior to a session.

Some paint patterns have been updated to work better with ducts and the helmet air hose pickup.

iRacing setups have been updated.

Dallara iR-01

iRacing setups have been updated.

Dallara P217

For the global/default Rules Set, fuel must now be completed prior to any bodywork adjustments being performed.

When using the WSC2017 Rule Set, the engine map display now accurately reflects the additional engine power. These go to 11.

Opponent car dashboard values have been updated to be more representative of the player car.

Adjusted the backfire values for the car to shoot flames more frequently.

Dirt Modified

(BOTH) - Fixed an issue where gears were unavailable for selection in the garage screen.

Dirt UMP Modified

iRacing setups have been updated.

EURO NASCAR V8GP

The impact of body damage on aerodynamics has been reduced.

Ferrari 296 Challenge

Added rule support for the IMSA, NEC, NoABS, NoTC, and NoABSTC rulesets.

For the default ruleset, tires will now be changed after fueling has completed.

When the NEC Rule Set is in use, the fuel fill rate is slightly faster - a full tank should now take 120 seconds.

Ferrari 296 GT3

2026 Season 4 BoP changes: Aero drag and downforce have been reduced, and fuel economy efficiency has been reduced slightly.

The rear suspension system has been updated.

Fixed an issue where the rendering details draw distance for the right-rear tire were different than the other 3 tires.

Ferrari 488 GT3 Evo 2020

Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7.5 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

Ford GT GT2

Support has been added for car Rule Sets!

This car may now be fully repaired when damaged. Repair times have been adjusted to suit.

Ford GT GT3

Support for car Rule Sets has been added!

Ford Mustang FR500S

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be performed at half the usual rate. For the NOABS and NOABSTC Rule Set, ABS is disabled.

Slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

Improved opponent car dashboard display behavior to more appropriately match the player car.

Headlights may now be flashed by both the player and AI cars.

Ford Mustang GT3

2026 Season 4 BoP changes: Reduced downforce, engine torque, and fuel economy.

Formula Renault 2.0

AI Drivers are ready to race with the Formula Renault 2.0!

Global Mazda MX-5 Cup

Full ground-up overhaul and refresh! This car has undergone a significant update, changing underlying code and systems as well as updating data and properties for a better driving experience.

Suspension has been converted to a more sophisticated kinematics system.

Steering and masses and inertias have been updated.

New dry and wet tires have been added.

Power curve has been updated to the latest spec.

ARB preload zeroing functionality added.

Driveline efficiencies are now more real-world accurate.

Aero side force data has been added and tuned accordingly.

Baseline correlation from team data has been applied.

Vehicle handling has been updated to a better feel based on feedback from real-world and in-house drivers.

Damping has been updated to the latest spec.

Gearbox temperatures have been re-tuned.

Bump drafting has been updated from a contact and aero perspective for a more true to life experience.

Added ruleset support for the MX5 (2016) - this car has the Default, IMSA, NEC, NoABS and NoABSTC rulesets available.

For the default ruleset, tires and fuel are performed sequentially, 60 seconds to fill the tank, 40 seconds to change all 4 tires.

Chassis textures have been updated.

Some branding for IMSA has been updated.

iRacing setups have been updated.

HPD ARX-01c

Support has been added for car Rule Sets!

This car may now be fully repaired when damaged and repair times have been adjusted.

Removed unused TC2 and Power Steering keybind mappings.

Honda Civic Type R TCR

Fixed an issue where the window net was missing from the UI model of this car.

Hyundai Veloster N TCR

2026 Season 4 BoP changes: Vehicle weight has been reduced by 10 kg, and downforce effects have been increased.

Indy Pro 2000 PM-18

iRacing setups have been updated.

Kia Optima

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Set, tires and fuel will be performed simultaneously. Additionally for the NEC Rule Set, fueling will take 120 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled.

Late Model Stock

iRacing setups have been updated.

Legends Ford '34 Coupe

Draft effects have been reduced.

iRacing setups have been updated.

Ligier JS P320

Front diveplanes and the rear wing flap angle may now be adjusted during pitstops. This work is performed once tires have been changed.

For the global/default Rules Set, fuel must also be completed prior to any bodywork adjustments being performed.

Adjusted the backfire values for the car to shoot flames more frequently.

iRacing setups have been updated.

Limited Dirt Late Model

iRacing setups have been updated.

Lotus 49

iRacing setups have been updated.

Lotus 79

iRacing setups have been updated.

Lucas Oil Off Road Pro Trucks

iRacing setups have been updated.

McLaren 570S GT4

Reduced the tendency for the Traction Control and ESC systems to be overactive in wet conditions.

McLaren 720s GT3 EVO

2026 Season 4 BoP changes: Engine torque has been reduced slightly, and fuel economy efficiency has been reduced.

McLaren MP4-12C GT3

Support for car Rule Sets has been added!

Mercedes-AMG GT3 2020

The low fuel warning may now be cancelled.

Mercedes-AMG W13 E Performance

iRacing setups have been updated.

NASCAR Whelen Tour Modified / SK

(BOTH) - iRacing setups have been updated.

(SK) - Updated the material textures for the air filter.

(SK) - Updating a variety of sound files for engine onload, steady, and offload for all listening locations.

Nissan GTP ZXT

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously.

Pontiac Solstice

(BOTH) - Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. Additionally, for the NEC Rule Set, fueling will take 120 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled.

(BOTH) - Slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

Porsche 911 Cup (992.2)

For the global/default Rules Set, fuel must now be completed prior to any ARB and wing adjustments being performed. However, the wing may now be adjusted simultaneously with ARB and tire adjustments. When the NEC Rule Set is in use, the fuel fill rate is slightly faster - a full tank should now take 120 seconds.

Reduced the sensitivity of the overspeed warning when using the pit limiter to prevent excessive oscillation of red/green display warnings.

iRacing setups have been updated.

Porsche 911 GT3 Cup (992)

Support has been added for car Rule Sets!

Porsche 911 GT3 R (992)

2026 Season 4 BoP changes: Increased downforce, reduced drag except at high speeds, reduced engine torque, and fuel economy efficiency has been reduced.

iRacing setups have been updated.

Porsche 963 GTP

Fixed a dash display bug where brake temperatures were being displayed in Kelvin rather than Celsius.

Porsche Mission R

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

Fixed a fuel-related Simulator crash that could occur with this vehicle - the code did not like how this vehicle is electric!

Pro Dirt Late Model

iRacing setups have been updated.

Radical SR8

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously.

This car is now air-jacked and has fuel and tire pitstop times that match the Radical SR10 variant.

Radical SR10

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously.

iRacing setups have been updated.

Renault Clio R.S. V

Add car Rule Set support for IMSA and NEC. Pitstop jacking is now performed per side as opposed to air jacking the whole car as one. For the default rules, tires are now changed after fueling has been completed and pitstop timings have been adjusted. A full tank of fuel will take 60 seconds (120 seconds for NEC rules) and tire changes approximately 40 seconds.

AI Drivers are now able to use Rule Sets applied to this vehicle.

Ruf RT 12R

(C-Spec) - Support has been added for car Rule Sets!

(Track) - Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

(AWD & RWD) - Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

(AWD & RWD) - Slightly slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

SCCA Spec Racer Ford

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously.

Silver Crown

iRacing setups have been updated.

SRX

iRacing setups have been updated.

Sprint Car

Full ground-up overhaul and refresh!

Tire model has been updated and tire dimensions updated to match the current rule sets.

Front and rear suspension fully rebuilt, and shocks rebuilt to match modern damping profiles.

Engine upgraded to the newest model, overall engine power increased and power curve reprofiled for better driveability.

Brakes upgraded to newest systems.

Weight reduced, and weight distribution has been reconfigured.

Aerodynamic performance has been updated.

Garage adjustments, formatted, and limits altered and updated to match real-world iRacing setups have been updated.adjustment limits.

Pit stop behavior updated to use air jacks, and tire change time and fueling rates adjusted.

iRacing setups have been updated.

Super Dirt Late Model

iRacing setups have been updated.

Super Late Model

For the Damage Model, increased the yield and break limits for the nose.

iRacing setups have been updated.

Toyota GR86

Car Rule Set support has been added for IMSA, NEC, NOABS, NOTC, NOABSTC. Pitstop jacking is now performed per side as opposed to air jacking the whole car as one. For the default rules, tires are now changed after fueling has been completed and pitstop timings have been adjusted. A full tank of fuel will take 60 seconds (120 seconds for NEC rules) and tire changes approximately 40 seconds.

AI Drivers are now able to use Rule Sets applied to this vehicle.

USF 2000

iRacing setups have been updated.

VW Jetta TDI Cup

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be performed at half the usual rate. For the NOABS and NOABSTC Rule Set,, ABS is disabled.

Slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

[Legacy] Audi R8 LMS GT3

Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

[Legacy] BMW Z4 GT3

AI Drivers are ready to race with the [Legacy] BMW Z4 GT3!

Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

[Legacy] Ferrari 488 GT3

Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

[Legacy] Mazda MX-5 2010

(BOTH) Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA and NEC Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be performed at half the usual rate. For the NOABS and NOABSTC Rule Sets, ABS is disabled.

(BOTH) Slowed the speed of tire changes in pitstops, a full 4 tire pitstop should now take 40 seconds.

Adjusted the hub pivots so they no longer extend out from the wheel rims.

[Legacy] Mercedes-AMG GT3

Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

[Legacy] Porsche 911 GT3 Cup (991)

Support has been added for car Rule Sets!

[Legacy] Porsche 911 GT3 R

Support for car Rule Sets has been added!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA, NEC and DTM Rule Sets, tires and fuel will be performed simultaneously. For the NEC Rule Set, fueling will be completed in approximately 120 seconds. For the DTM Rule Set, a four tire change will be completed in 7 seconds. For the NOABS and NOABSTC Rule Sets, ABS is disabled. For the NOTC and NOABSTC Rule Sets, TC is disabled.

Fixed an issue with the appearance of opponent car setups.

[Legacy] Riley MkXX Daytona Prototype - 2008

AI Drivers are ready to race with the [Legacy] Riley MkXX Daytona Prototype - 2008!

Support has been added for car Rule Sets!

For the default Rule Set, tires will now be changed after fueling is completed, for the IMSA Rule Set, tires and fuel will be performed simultaneously.

Tracks

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Adelaide Street Circuit

Some banners and ads have been updated and rehung for improved alignment.

Atlanta Motor Speedway

Some ads have been updated.

Auto Club Speedway

(Competition, Interior, and Moto) - AI Drivers are ready to race at these configs!

Brands Hatch Circuit

(Grand Prix & Indy) - Start Zones have been added

Track cameras have been updated.

Bristol Motor Speedway

Some ads have been updated.

Charlotte Motor Speedway

(Rallycross - No Joker) - Rolling starts have been correctly disabled at this config.

Some Race Rules tab language has been updated for clarity.

Some ads have been updated.

Chicago Street Course

Updated trees around the entire track, and fixed the planters by the buildings.

Fixed an issue where cypress trees would blow in opposite directions.

Chicagoland Speedway

Some new tire barriers have been added.

Some ads have been updated.

Circuit Park Zandvoort

(Grand Prix) - An off-track and slowdown penalty has been added to the apex of Turn 6. Rules tab updated to match.

The draw distances and rendering performance of trees at this track have been improved.

Tire barrier models have been replaced with new updated versions.

Circuit Zolder

Fixed a gap that could appear in the pit wall at certain camera distances.

Improved distant treeline placement.

Circuit de Lédenon

The draw distances and rendering performance of trees at this track have been improved.

Circuit of the Americas

(NASCAR West) - Added new apex tire packs to Turns 3, 4, 5, 6, 6A, 13 and 19. The slowdowns and off-track checkpoints for the esses have been updated. Rules tab has been updated to match these changes.

Some ads and logos have been updated.

Darlington Raceway

Some ads have been updated.

Daytona International Speedway

(Road Course) - Start Zones have been added.

Track logos and ads have been updated.

Dover Motor Speedway

Cones have been added as brake markers.

Some billboards and ads have been updated.

Federated Auto Parts Raceway at I-55

AI Drivers are ready to race at this track!

Fuji International Speedway

(Grand Prix & No Chicane) - Start Zones have been added.

Removed the anti-cut curbs on exit of Turns 13, 15 and 16.

Homestead Miami Speedway

Cones have been added as brake markers.

A variety of logos, ads, branding, and signage have been updated, including on garages and in Victory Lane

Huset’s Speedway

Fixed an issue where the pit speed and pace speed values were flipped.

Indianapolis Motor Speedway

(Oval & Open Wheel Oval) - Warm-up lane rules have been added to prevent using unintended areas for a competitive advantage.

Some old gift shops have been removed. Returns will no longer be accepted at these locations.

Victory Lane signage has been updated.

Iowa Speedway

Some ads have been updated.

Irwindale Speedway

Night lighting has been fully implemented at this track!

(Outer) - Pit road speed limit has been reduced to 25mph.

Kansas Speedway

(Infield Road Course and Road Course) - AI Drivers are ready to race at these configs!

Some ads have been updated.

Las Vegas Motor Speedway

(Oval) - Cones have been added as brake markers.

Lime Rock Park

Some ads have been updated.

Long Beach Street Circuit

Start Zones have been added.

Lucas Oil Indianapolis Raceway Park

Some ads have been updated.

Martinsville Speedway

Cones have been added as brake markers.

Some ads have been updated.

Miami International Autodrome

Removed a tent that was pitched too close to the racing surface.

Michigan International Speedway

Restart Zone artwork has been updated.

Some ads and logos have been updated.

Mid-Ohio Sports Car Course

FULLY UPDATED TRACK!

Mid-Ohio Sports Car Course has been rebuilt from the ground-up with brand new laser scan data and the latest and greatest artwork techniques.

The Mid-Ohio Sports Car Course ranks among America’s premier road racing facilities. The track has hosted every major American road racing series worthy of the name, and the list of drivers who have stood atop Mid-Ohio’s victory podium is a Who’s Who of racing greats. Constructed near Mansfield, OH in 1962 by Les Griebling and several prominent local businessmen, Mid-Ohio originally featured a 2.4 mile, 15 turn layout consisting of a blend of fast, medium and slow speed corners, one long straightaway and several dramatic elevation changes. Although the track was updated over the years, Jim Trueman (founder of the Red Roof Inn motel chain and TrueSports Racing) thoroughly modernized the facility after acquiring the track in 1982. In addition to a new garage, paddock and operations tower, the update tweaked the track layout by by-passing the Keyhole chicane, resulting in an optional 2.25 mile, 13 turn circuit. Both configurations begin with the daunting Turn One, a blind, 100+ mph corner, include a roller-coaster series of esse bends known as “Madness” and conclude with a near-360 degree Carousel that has a virtually unlimited number of lines and apexes. More recently, a “short course” was created by connecting the exit of Turn One to the back straight-away, and there is also a new mini-oval utilizing the Keyhole Hairpin and another 180 degree turn linking the track on the approach and exit to the Keyhole. In its near-fifty year history, Mid-Ohio has hosted America’s premier racing series including the United States Road Racing Championship, Can-Am, Trans-Am and Formula 5000, along with IMSA, IndyCar and NASCAR races. As well, Mid-Ohio has long been a club racing mecca and enjoyed a 12 year run as the home of the Sports Car Club of America’s National Championship Runoffs from 1994 through 2005. For 2026, iRacing has rescanned and rebuilt Mid-Ohio from the ground up.

All accounts that currently have access to Mid-Ohio Sports Car Course get this new version absolutely free.

All configs at this track are ready for AI racing!

The old version of Mid-Ohio Sports Car Course is [RETIRED].

Any pending Hosted Sessions using the old version of Mid-Ohio Sports Car Course have been cancelled and will not be charged to your account.

Motorsport Arena Oschersleben

The ending segments of 3D curbs have been updated for a smoother ride.

Nashville Superspeedway

Caution lights have been updated.

Some ads have been updated.

New Hampshire Motor Speedway

Some ads and logos have been updated.

North Wilkesboro Speedway

Some ads have been updated.

Okayama International Circuit

The draw distances and rendering performance of trees at this track have been improved.

Oswego Speedway

Dirt - AI drivers are ready to race at this config!

Phoenix Raceway

The draw distances and rendering performance of trees at this track have been improved.

Some ads have been updated.

Pocono Raceway

Some ads have been updated.

Qualcomm Circuit (Naval Base Coronado)

Track layout and barriers have been updated based on the real-world track changes:

Turn 1 barriers, restart zone, and wall art have been updated. Slow down penalties have been updated to suit.

Turn 8: Adjusted the tire barrier so it no longer extends past the road, leaving a gap open for safety vehicles.

Turn 12A: Removed the apex tire bundle and extended the tire wall to meet the apex. Added a chevron tire wrap. Added an additional tire barrier and wraps to the left-hand wall.

Turn 13: Adjusted the barriers to match the new wall changes.

Turn 15: Removed the tire bundle at the apex.

Chicane: Updated tire barrier configurations and tire bundle placements, with new tire wraps.

Turn number banners have been updated.

Increased the chicane slowdown penalties and added an additional pit exit checkpoint.

Added and adjusted some new brake markers.

Pit entry lights have been added.

Track cameras have been updated.

Adjusted some track decals to improve rendering performance.

Additional track marshals, photographers, and safety vehicles have been added.

Some casino branding has been updated.

Corrected the flags being flown by the stationed aircraft carrier.

Richmond Raceway

Some ads have been updated.

Road America

FULLY UPDATED TRACK!

Road America has been rebuilt from the ground-up with brand new laser scan data and the latest and greatest artwork techniques.

Located outside the picturesque village of Elkhart Lake, in Wisconsin’s beautiful Kettle Moraine region, an hour north of Milwaukee and just two hours from Chicago, Road America opened in 1955. From 1950 through 1953 the town had been host to annual sports car races conducted on ad-hoc circuits made up of linked sections of county highways, but safety concerns ended open-road racing. The track was built by local civil engineer Cliff Tufte, who set out a 14-turn, four-mile ribbon of pavement, literally over hill and dale. Tufte took advantage of the hillsides adjacent to many parts of the track to provide natural viewing areas for spectators. Road America, one of the world’s classic road-racing venues, has been host to every important North American racing series, beginning with SCCA sports cars in the 1950s, to the Can-Am and Trans-Am in the ’60s and ’70s, IMSA’s GT and GTP cars since the ’70s, and IndyCars beginning in 1982. NASCAR ran a race at Road America in 1956, won by the legendary Tim Flock, and now includes the Wisconsin road course on its Nationwide Series schedule. The June Sprints, put on annually for more than 50 years by the SCCA’s Chicago Region, draws 600+ amateur sports car racers and as many as 30,000 spectators. The current schedule also includes vintage and motorcycle racing. Road America is beloved both by spectators, who are afforded a variety of spectacular views and by drivers, who value the challenges the track presents. And while Road America enjoys a rich tradition, it is not a prisoner of its history. A recent upgrade to the facility saw spectator viewing and paddock access improved by the replacement of the Bill Mitchell bridge with a tunnel a hundred yards further down the road. A further nod to the performance gains wrought by modern technology is the addition of an optional chicane at Road America’s famous “kink” in the back straightaway, providing a second configuration for race series that don’t wish to expose their drivers to one of motorsport’s biggest thrills every four miles. iRacing’s all-new 2026 scan of Road America adds its Short East and West layouts to the existing Full Course and Bend layouts.

All accounts that currently have access to Road America get this new version absolutely free.

This track includes FOUR configs: Full, Bend, Short East, and Short West.

AI Drivers are ready to race at both configs of this track!

The old version of Road America is [RETIRED].

Any pending Hosted Sessions using the old version of Road America have been cancelled and will not be charged to your account.

Road Atlanta

ART REFRESH!

This track has received a significant art overhaul. The track surface, buildings, fences, track-side objects, and scenery have been updated. Trees, shrubs, and 3D foliage have all been updated and added. All textures, shaders, and lighting have been updated to our current artistic standards.

Sonoma Raceway

The draw distances and rendering performance of trees at this track have been improved.

Some environment object textures have been optimized for improved performance.

New Tech Pro barriers have been installed.

Some ads have been updated.

St. Petersburg Grand Prix

Some ads have been updated.

Summit Point Raceway

ART REFRESH!

This includes both Summit Point Raceway and the Jefferson Circuit.

Talladega Superspeedway

Infield/apron logos have been updated and a scoring pylon has been removed.

Some ads have been updated.

Added pit barrels to some safety vehicle openings and updated catch fence collision areas.

Start/Finish booth has been updated.

Victory Lane artwork has been updated.

Texas Motor Speedway

Some ads have been updated.

The Milwaukee Mile

FULLY UPDATED TRACK!

The Milwaukee Mile has been rebuilt from the ground-up with brand new laser scan data and the latest and greatest artwork techniques.

The world’s oldest continuously operating motorsport facility, the Milwaukee Mile boasts more than a century’s worth of history. While the track honors its history each year with the Millers at Milwaukee Vintage Indy Car Event, it’s the challenge of getting modern racing cars around Milwaukee’s barely banked corners that makes every race day at this Midwestern fairground oval another page in the history book. From its opening in 1905 the Mile has been home to open-wheel racing cars – for the first 49 years as a dirt track and since 1954 as a paved one. For more than 60 years Milwaukee served as the next stop on the IndyCar circuit following the Indy 500, where drivers who had bad race at Indy got another shot at glory. Over the years the Milwaukee Mile has also played host to USAC’s Silver Crown cars and Midgets as well as NASCAR, ARCA, ASA and the Mid-American Stock Car Series. The track has been re-scanned for 2026, adding a road course layout to its traditional oval layout.

The Milwaukee Mile includes two track configs: Oval and Road Course.

All accounts that currently have access to The Milwaukee Mile get this new version absolutely free.

(Road) - AI Drivers are ready to race at this config!

The old version of The Milwaukee Mile is [RETIRED].

Any pending Hosted Sessions using the old version of The Milwaukee Mile have been cancelled and will not be charged to your account.

USA International Speedway

(Dirt) - AI Drivers are ready to race at this config!

Watkins Glen International

(Full Course) - Start Zone area has been adjusted. The white lines and cones have been removed - make sure you watch for Barney's signal and go on the green flag!

Some ads have been updated.

Weedsport Speedway

Fixed an issue where the fireworks director was cutting costs and had opted to use only white fireworks. Colorful fireworks have been added back to the displays!

World Wide Technology Raceway (Gateway)

Some ads have been updated.

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2026 Season 4 Initial Release Notes [2026.09.09.01] Print

How can we help you today?

2026 Season 4 Initial Release Notes [2026.09.09.01] Print

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