iRacing: 2025 Season 4 Release Notes

iRacing 2025 Season 4 is here!

Below you’ll find the complete Season 4 Release Notes with every detail of what’s new, improved, and fixed in this build.

• Remember, you can join iRacing clicking here.
• Our 2025 Season 4 Review can be found here!

Season highlights include:

• New Sim UI
• Aston Martin Vantage GT3 EVO
• Dallara IL-15 (INDY NXT)
• Ford Mustang GT4
• Physics Overhaul for the GT4 Class, including Rain Tires updates
• BMW M4 GT3 updated to EVO spec
• Hybrid System Overhaul
• Substantial NASCAR Gen4 Drafting Updates
• Autódromo Hermanos Rodríguez (Mexico City)
• Rescanned and remodeled tracks: Charlotte Motor Speedway, North Wilkesboro Speedway, Sonoma Raceway, and World Wide Technology Raceway.
• Overhauled and modernized tracks: Chicago Street Course, Circuit of the Americas, Daytona International Speedway, Texas Motor Speedway, Watkins Glen International, and Oulton Park Circuit
• Texture Compression Update
• VR Headset Eye-Tracking Foveated Rendering Support
• European Spanish for much of the non-in-Sim iRacing application
• All three new cars come ready for rain racing! (Aston Martin Vantage GT3 EVO, Dallara IL-15, Ford Mustang GT4)
• AI Racing is now available with FOUR new cars! (Aston Martin Vantage GT3 EVO, Ford Mustang GT4, and the NASCAR Gen4 Class Cars)
• AI Racing is now available at North Wilkesboro Speedway, Circuit of the Americas – NASCAR West, and all SEVEN track configurations for the brand new Autódromo Hermanos Rodríguez (Mexico City)! AI Drivers have also been retrained from scratch at Charlotte Motor Speedway – all EIGHT non-Dirt configs, Sonoma Raceway – all NINE non-Dirt configs, and World Wide Technology Raceway (Gateway) – Oval
• Hundreds of meticulously engineered new vehicle setups
• Visit our 2025 Season 4 features page here: https://www.iracing.com/seasons/2025-s4/

Full 2025 Season 4 Release details are below.

iRACING:

Localization

• Customers may now select to use iRacing in European Spanish!
• This translates much of the non-in-Sim iRacing application. For more information about what this includes, does not include, and if you are a native speaker, how you can help us improve our work here:
• https://forums.iracing.com/discussion/84408/european-spanish-localization-feedback#latest

AI Racing

• Randomly generated AI Opponent Rosters have been further improved with more than 300 new color combinations, specialization by car and class type, and the addition of new sponsors.

Flags

• The country of Netherlands Antilles has been removed from the selectable list. This country was dissolved in 2010.
• The country of Swaziland has been appropriately renamed to Eswatini.

Paint Kit

• Tons of new sponsors have been added to the Paint Kit, including:
• iRacing Downshift, iRacing Studios, Advance Auto Parts, Advent Health, Alcon, Ally, Anduril, Ansys, BBS, Big Fish BBQ, Borla, Callies, Castrol, Cometic, Cosworth, CW Sports, Dart, Fifth Third, Five Star Bodies, FOD Control, Horizon Hobby, HTL Technologies, Hyperco, Intercomp, Jack Links, JBL, JE Pistons, Jostens, JRi Shocks, Klotz Synthetics, Kooks, Liquid Death, Loose is Fast Podcast, Losi RC Cars, Mack Trucks, Quarter Master, Racing Electronics, Safety Kleen, Schluter Systems, SKF, SPxE, SRI, Stratasys, Technique Chassis, Trak Racer, and UNOH.

Some sponsors have been updated in the Paint Kit, including:

• Build Submarines (secondary color added)

3rd Party /data API & /jforum Use

• If you are currently consuming the /data API or interacting with the legacy /jforum endpoint, please see this post for changes coming in the December 2025 Release (2026 Season 1).
• https://forums.iracing.com/discussion/84226/legacy-authentication-removal-dec-9-2025/p1?new=1

SIMULATION:

User Interface

The new Sim UI is here!

The new Sim UI is a complete re-architecture and rebuild of the in-Sim user interface, built from the ground up on powerful modern technology and an all-new framework.

The initial experience has been crafted to function in a familiar way, with a fresh new look made possible by its modern rendering capabilities, along with multiple advancements in functionality and features, including:

• Black Boxes: These now have minimized and expanded states. The Relative and Standings boxes display additional data.
• Sim Options redesign: Options have had a significant reorganization, including the merging of the Replay and Driving graphics options. We’ve also added a clickable table of contents down the left-hand side, and to the right, we’ve added more information to explain the setting.
• Alt-K to move UI: Additional toggle control to enable/disable all moveable elements for easier visualization.
• Virtual Mirror size control: Via Alt-K, you can select the size of your virtual mirror from a drop-down menu.
• Real-world clock: Access local time via the F1 menu and via an optional dedicated widget (Settings > Interface > On-Screen Displays > Real Time Clock).
• Camera Tool redesign: Now accessible via a dedicated button on the Session screen; Ctrl-F12 binding still available.
• Tooltips: Most controls now display tooltips on hover.
• UI scale and opacity adjustable while editing layout or in Settings.
• All widgets can be toggled visible via checkbox; includes reset button and easier-to-find editing mode.

We are very excited about the future of the new Sim UI, and we want feedback about your experience.

Share thoughts and issues here:

https://forums.iracing.com/categories/sim-ui

Physics

The hybrid system for all of our hybrid car types has been overhauled for this release. This is an improvement for how we develop our vehicle power unit code. For more details on exactly what this means for each type of vehicle, please see this post from our Vehicle Development Manager:

https://forums.iracing.com/discussion/84630/hybrid-system-update-goals-scope-and-what-it-means-for-you#latest

Race Control

• The hold delay for cars starting a race from pit lane has been increased by 3 seconds.
• The pace car pit exit speeds and timing for picking up the field have been improved.
• The pace car will now pull out of the pits a little bit earlier for cautions where the leader was early in the lap.
• The !remove ... chat command is intended to remove only a single person from the event.
• You may now use !remove #N with N being the full car number, provided that car only has a single declared driver. In that situation, that team’s one-and-only driver will be removed.

Dynamic Track Model

• Improved the simulated weather and time effects on the track before the first session begins.
• Fixed an issue where some paved off-track surface temperatures could be significantly different from paved track surface temperatures.

AI Racing

AI Drivers are now ready to drive the following new vehicles:

• Aston Martin Vantage GT3 EVO
• Ford Mustang GT4
• NASCAR Gen 4 Chevrolet Monte Carlo – 2003
• NASCAR Gen 4 Ford Taurus – 2003

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

• Autódromo Hermanos Rodríguez (Mexico City) – all SEVEN configs
• Charlotte Motor Speedway – EIGHT non-Dirt configs (fully re-trained)
• Circuit of the Americas – NASCAR West
• North Wilkesboro Speedway – Oval
• Sonoma Raceway – NINE non-Dirt configs (fully re-trained)
• World Wide Technology Raceway (Gateway) – Oval (fully re-trained)

The seasonal curriculum for AI Drivers included the following courses this semester:

• Track Refreshes – Re-Learning What You Thought You Already Knew
• Geology 101: Dirt Identification Seminar

AI Drivers have improved their racing skills with the following cars:

• <Car Class> GT3 Class Cars
• <Car Class> GT4 Class Cars
• <Car Class> GTP Class Cars
• Ferrari 499P
• Super Formula Lights

AI Drivers have improved their racing skills at the following track configs:

• Bristol Motor Speedway – Dual Pit Roads, Single Pit Road
• Chicago Street Course – 2023 Cup
• Daytona International Speedway – Moto, NASCAR Road, Road Course
• Dover International Speedway
• Las Vegas Motor Speedway – Oval
• Oulton Park Circuit – all EIGHT configs
• Rockingham Motor Speedway – Oval
• Texas Motor Speedway – Oval
• Watkins Glen International – all FOUR configs

The following adjustments have been made with Adaptive AI Racing:

• Adaptive AI Challenge Skill spread and rate of change has been adjusted within single class events.
• Adaptive AI drivers should generally be slightly more challenging.

Fixed some AI Systems issues, including:

• Fixed an issue with Adaptive AI in multiplayer Sessions where drivers joining the Session late were not being correctly registered.
• Fixed a crash that could occur due to incomplete handling of gravel and mud surfaces by AI Drivers.
• Fixed an issue with AI-driven Lotus 49 vehicles where the nose of the car would experience excessive gravitational forces whenever it left the ground – for example when driving off jumps.

Damage Model

• Adjusted the damage threshold where scrape textures begin to appear on vehicles.

Graphics

For OpenXR VR devices that support the “XR_EXT_eye_gaze_interaction” extension, we have added support for Dynamic Foveated Rendering. There are two new related settings, one is “Allow Eye Tracking” and the other is “Show Eye Tracking.” The foveated rendering also requires an nVidia GPU RTX2000 series or better.

Dynamic Foveated Rendering renders each eye at a lower resolution and then renders a higher-resolution inset wherever it detects that each eye is looking, resulting in a stereo image with less resolution around the edges and more resolution where you are actively looking.

Important Notice: The SteamVR runtime does not support eye tracking properly for some HMDs. For instance, you must select the Pimax/Varjo OpenXR runtimes for those headsets for better results.

Not all VR headsets/runtimes support this capability. Check your hardware specs to verify.

Texture compression algorithms have been updated to provide higher quality visuals throughout the Sim, better GPU performance, and slightly shorter loading times.

Audio

• A new camera tool has been added, which allows for adjustments to the microphone offset.
• The limits of the listener controls in the camera tool have been adjusted.

Spotter

• Added a new spotter message: “Pitting now for fuel will get us to the end of the race.”
• New spotter messages have been added for Time Trials, including:
  • “You need to complete X laps for this Time Trial.”
  • “You had an incident. Your lap count has been reset.”
  • “You’ve completed the laps needed for this Time Trial.”
• Added variants for a few spotter messages, including:
  • “We need more laps for fuel data.”
  • “We’ve got good fuel data.”
  • “You have enough fuel to finish the race.”
  • “Remember, you need to pit for more fuel.”
• Fuel-related Spotter messages will no longer play during Time Trials.
• The Italian, Spanish, and Portuguese spotter packs have been updated.

Controls

• The latest Fanatec API has been updated. This fixes a random rare lock-up that could occur for some users.
• A new variable, [TrueForce] trueForceSetGain= 1, has been added to the “app.ini” file to disable auto setting TrueForce gain to 100% on launch.
• The Moza API has been updated, fixing an issue where the wheel could become unresponsive over time.

Auto-Fuel

• Fixed an issue where auto-fuel could silently edit the fuel value even when the system was disabled.

Replays

• Slightly lowered the chase camera angle to allow better visibility with wide aspect ratios.
• Fixed an issue where the Simulator could sometimes crash when attempting to save Replays.

Active Reset

• Fixed an issue where Active Reset would sometimes cause cut course slowdowns.

Telemetry

• Two new Boolean variables have been added: PitRepairNeeded and PitOptRepairNeeded.

Sporting Code

• Track debris is now mentioned for Yellow Flags.
• Information surrounding the Connection Black Flag has been added.

Cars

<Car Class> ARCA 2025 Series

• iRacing setups have been updated.

<Car Class> GT3 Series Cars

• Class Balance of Performance adjusted.
• Adjusted the windshield reflections.
• Headlight flash durations and rates adjusted.
• Headlight lens colors adjusted.
• iRacing setups have been updated.

<Car Class> GT4 Series Cars

• Updated starting masses, ride height rules, fuel tank sizes, pitstop times, camber limits and air pressure minimums to reflect IMSA Pilot Challenge ruleset and BoP.
• Latest tire model for both dry and wet compounds.
• Tire compound specific ride height rules added.
• Tire warmer temperature reduced.
• Driveline drag and peak engine power outputs adjusted (greater overall drive power).
• BoP-sensitive engine modeling improved for consistency.
• Overall performance aligns with real world corner speeds and top speeds (lower tire grip ~2s/lap; higher top speeds ~10 km/h).
• ABS, TC, and Stability Control updated.
• Brake systems tuned for appropriate max line pressures.
• Brake pads now have ‘Sprint’ and ‘Endurance’ options.
• Damper profiles, ranges, and bump rubber/stop profiles updated.
• Spring perch offsets adjustable in 0.25 mm increments.
• Wing position ranges/notation aligned with real world.
• Aero downforce balance and sideforce profiles adjusted.
• Garage layouts updated with clearer tech tips.
• Differential builds adjusted where appropriate.
• User adjustable low fuel warning/clear added (except McLaren).
• Opponent dashboards reflect car status more accurately.
• Adjusted the windshield reflections.
• All previous setups are obsolete due to platform height resets and physics changes.

<Car Class> GTP Series Cars

• Fuel economy updated for BoP.
• Headlight flash rate adjusted.
• iRacing setups have been updated.

<Car Class> NASCAR Cup Gen 7 Series

• Added lap times to the dash display.
• Fixed issue keeping dash on when killing ignition above pace speed.
• iRacing setups have been updated.

<Car Class> NASCAR Gen 4 Series

• Now AI-enabled.
• Power steering assistance reduced.
• Garage adjustment ranges reduced (front sway bar, rear springs).
• iRacing setups have been updated.

<Car Class> NASCAR 1987 Legends Series

• iRacing setups have been updated.

<Car Class> NASCAR Next Gen Series

• Improved in-car engine sounds.
• iRacing setups have been updated.

<Car Class> NASCAR Truck Series

• New digital dashboard added.
• Updated the “NASCAR Race Truck” front fender decal.
• iRacing setups have been updated.

<Car Class> NASCAR Xfinity Series

• iRacing setups have been updated.

<Car Class> Rallycross

• (ALL) Slightly reduced damage required to trigger incident penalty for body panels.

<Car Class> Street Stock

• iRacing setups have been updated.

<Car Class> Super Formula SF23

• Now capable of refueling during events.
• iRacing setups have been updated.

<Car Class> Supercars – Gen 3

• iRacing setups have been updated.

<Car Class> [Legacy] NASCAR Cup Gen 6 Series

• iRacing setups have been updated.

Acura ARX-06 GTP

• Weight increased slightly for BoP.

Acura NSX GT3 EVO 22

• Removed IMSA Short gear stack.

Audi R8 LMS EVO II GT3

• Front splitter height reduced.
• BoP: aerodynamic drag reduced slightly.

Aston Martin Vantage GT3 EVO

NEW CAR!

A new Sports Car, the Aston Martin Vantage GT3 EVO, is now available for purchase and use within iRacing!

Carrying on a long line of sports cars produced by the iconic British manufacturer, the Aston Martin Vantage GT3 first took to the track in 2019. Its EVO variant was unveiled in 2024… (see game for full details).

• Add the Aston Martin Vantage GT3 EVO to your garage today from the iRacing Store!
• AI Drivers are already able to pilot it!
• Rain-racing ready!

Aston Martin Vantage GT4

• Inertia properties recalculated for improved response.
• Fuel tank location adjusted for accuracy.
• Suspension installations adjusted for more accurate wheel rates.

BMW M2 CSR

• iRacing setups have been updated.

BMW M4 G82 GT4 EVO

• Body aero profile adjusted (improved high downforce performance).
• Anti-Roll bar rates adjusted.
• Increased rear camber adjustment range.

BMW M4 GT3 EVO

This vehicle has been updated to the current EVO model. Existing owners receive the update automatically.

• Vehicle physics parameters and artwork updated.
• FIA gear stack option added.
• Diff ramps changed; more lock on power, less on coast; more friction faces possible.
• Reduced front caster; rear kinematics adjusted (more anti-lift, less anti-squat).
• New ARBs with wider range and new naming.
• Wider spring rate range with larger steps.
• Steering ratio 8% faster.
• Bump rubbers and adjustable gaps added.
• Direct ride height adjustments.
• New KW dampers based on BMW data.
• All new iRacing setups (old setups no longer load).
• Low fuel warning indicator added to dash.
• Improved onboard engine/transmission sounds.

Chevrolet Corvette Z06 GT3.R

• Removed IMSA Short gear stack.

Dallara F3

• iRacing setups have been updated.

Dallara IL-15

NEW CAR!

A new Formula car, the Dallara IL-15, is now available for purchase and use within iRacing! (INDY NXT spec.)

• Add it to your garage today from the iRacing Store!
• Rain-racing ready!

Dallara IR18

• Fixed driver leg animations.

Dallara P217

• Enabled low fuel warning acknowledgement; adjustable in garage.

Dallara iR-01

• iRacing setups have been updated.

Dirt Late Model

• (Limited) Reduced stiffness of rear quarter panels and rear frame.

Dirt Micro Sprint Car

• iRacing setups have been updated.

FIA F4

• iRacing setups have been updated.

Ferrari 296 Challenge

• Opponent car dashboard more accurately represents running state.

Ferrari 296 GT3

• Removed IMSA Short gear stack.

Ferrari 488 GTE

• Windshield wiper shake animation added.

Ferrari 499P

• Hybrid deployment limited to 100kW max; high speed cornering deployment disabled.
• iRacing setups have been updated.

Ford Mustang GT3

• Removed IMSA Short gear stack.
• BoP: aerodynamic downforce reduced slightly.

Ford Mustang GT4

NEW CAR!

A new Sports Car, the Ford Mustang GT4, is now available for purchase and use within iRacing!

• Add it to your garage today from the iRacing Store!
• AI Drivers can pilot it.
• Rain-racing ready!

Formula Vee

• Updated dash box water temp label.

Gen 4 Chevrolet Monte Carlo – 2003

• AI drivers can pilot this historic vehicle.

Gen 4 Ford Taurus – 2003

• AI drivers can pilot this historic vehicle.

HPD ARX-01c

• iRacing setups have been updated.

Hyundai Elantra N TCR

• Headlight lens no longer casts green light.

Indy Pro 2000 PM-18

• iRacing setups have been updated.

Lamborghini Huracán GT3 EVO

• Brake cooling increased.
• Front splitter height reduced.
• BoP: aerodynamic drag reduced slightly.

Late Model Stock

• Adjusted the windshield reflections.
• iRacing setups have been updated.

Legends Ford ’34 Coupe

• Adjusted the windshield reflections.
• iRacing setups have been updated.

Ligier JS P320

• Enabled low fuel warning acknowledgement; adjustable in garage.
• Removed strange floating black object in rear-view mirrors.

Lotus 79

• iRacing setups have been updated.

Lucas Oil Off Road Pro Trucks

• (ALL) Slightly reduced damage required to trigger incident penalty for body panels.

McLaren 570S GT4

• Fuel tank location adjusted for accuracy.
• Suspension installations adjusted for accurate wheel rates.
• Brake bias adjustment removed.
• Engine torque curve adjusted.
• Now uses e-diff as per real car.
• Baseline caster increased slightly for improved steering feel.

McLaren 720S GT3 EVO

• Removed IMSA Short gear stack.

Mercedes-AMG GT3 2020

• BoP: fuel economy slightly worse.

Mercedes-AMG GT4

• Differential friction face options removed; 8 faces locked.
• Suspension installations adjusted for accurate wheel rates.
• Anti-Dive and Anti-Lift properties adjusted.
• Engine torque curve adjusted.

Mercedes-AMG W12 E Performance

• iRacing setups have been updated.

Mercedes-AMG W13 E Performance

• iRacing setups have been updated.

Modified – SK / NASCAR Whelen Tour Modified

• (Modified – SK) Car and driver animations updated.
• (Both) iRacing setups have been updated.

NASCAR Truck Toyota Tundra TRD Pro

• Some logos updated.

Porsche 718 Cayman GT4 Clubsport MR

• Front spring rate now adjustable.
• ESC and TC off buttons added.
• Mass placement adjusted for accurate corner weights.
• Inertia properties recalculated.
• Fuel tank location adjusted.
• Suspension installations adjusted for accurate wheel rates.
• Anti-Roll bar rates/ranges adjusted.
• Engine torque curve adjusted.

Porsche 911 GT3 Cup (992)

• Low fuel warning point adjustable in garage.

Porsche 911 GT3 R (992)

• Removed IMSA Short gear stack.
• BoP: reduced aero drag and moved CoP rearward.

Radical SR10

• Adjusted the windshield reflections.
• iRacing setups have been updated.

SRX

• iRacing setups have been updated.

Silver Crown

• iRacing setups have been updated.

Super Formula Lights

• Chassis hulls stiffened.

Super Late Model

• iRacing setups have been updated.

Toyota GR86

• Fixed tire change timing issue for inside front tire (total 4-tire time unchanged).

USF 2000

• iRacing setups have been updated.

[Legacy] Ferrari 488 GT3

• Windshield wiper shake animation added.

[Legacy] Porsche 911 GT3 Cup (991)

• Enabled low fuel warning acknowledgement; adjustable in garage.

[Legacy] V8 Supercar Ford FG Falcon – 2014

• Fixed rear view mirror not showing in cockpit view.

Tracks

Autódromo Hermanos Rodríguez (Mexico City)

NEW TRACK!

A new track with SEVEN configs, including both Sports Car and Oval configs, Autódromo Hermanos Rodríguez (Mexico City), has been added to iRacing!

• Add it to your account via the iRacing Store!
• AI Racing fully available for ALL SEVEN configs.

The Bend Motorsport Park

• Armco wall outside pit road is now a solid object.
• Race control updated to prevent course cutting at Turn 11 and Turn 16.

Charlotte Motor Speedway

NEW TRACK SCAN!

• Significant art overhaul with new laser scans of updated areas.
• New configs: Roval – 2025, Roval No Chicanes, Legends RC – 2025.
• Re-released as new versions (originals retired): Oval – 2018, Legends Oval, Roval – 2019, Legends RC Long, Legends RC Short, Rallycross.
• Now fully retired: Roval – 2018, Roval Long, Legends RC Oval Medium.
• Track limits and rules updated.

Chicago Street Course

• Significant art overhaul (part of “NASCAR Refresh”).

Chili Bowl

• Slowdown penalties added for the apron in both corners.

Circuit of the Americas

• Significant art overhaul (NASCAR Refresh).
• New layout added: NASCAR West (limits resemble 2025 NASCAR weekend).
• Track rules updated and clarified.
• Slowdown penalties increased for big cuts at final corner and Turn 1 (Grand Prix, West, NASCAR West).

Circuito de Jerez – Ángel Nieto

• Relaxed slow down penalty at pit entry (now 4 wheels over white line to trigger).

Circuito de Navarra

• Trimmed floating grasses in Turn 1.

Daytona International Speedway

• Significant art overhaul (NASCAR Refresh).
• (Road Course) Updated with latest LeMans chicane.
• Pit entry/exit and Restart Zone updated to match real world.

Dover Motor Speedway

• Fixed floating crowds when track detail lowered.

EchoPark Speedway (Atlanta)

• Updated pit stall lines and track surface textures.
• Updated ads, foliage, catch fences, crowds, logos.

Indianapolis Motor Speedway

• (NASCAR Oval) Restart Zone rules added; pit exit acceleration lane paint lines added; caution panels removed.
• Fixed disappearing Road Course tire barriers when Object Detail “Off”.
• Removed weekend vehicles intersecting a track wall.

Iowa Speedway

• Additional visitor vehicles added.

Kansas Speedway

• Grandstand tower visibility now tied correctly to main grandstand visibility.

Las Vegas Motor Speedway

• (Oval) 3D Grass added.
• Fixed popping objects with distance changes.
• Fixed track surface decal blending.
• Unburied some crowd members.

Michigan International Speedway

• Fixed ground plane intersecting barriers.

North Wilkesboro Speedway

NEW TRACK SCAN!

• Rescanned and remodeled from scratch using current laser data.
• Historic config remains available, labeled “1987”.
• Night lighting enabled.

Nürburgring

• Adjusted 3D grass seeds to avoid growing on AstroTurf.

Oswego Speedway

• Fixed opponent cars appearing to jump near inside wall of Turn 2.

Oulton Park Circuit

• Significant art overhaul to current artistic standards (captures condition when originally scanned).

Phoenix Raceway

• Fixed non-existent crowds firing flash bulbs.

Road Atlanta

• Start of pit lane relocated to real-world location.

Rockingham Speedway

• Artwork overhaul in progress; no updates in 2025 Season 4 Initial Release.

Sebring International Raceway

• Fixed physics properties of tire bundles at Turn 3.

Slinger Speedway

• Removed a truck parked too close to action.

Sonoma Raceway

NEW TRACK SCAN!

• Rescanned and remodeled to current state (surface and scenery).
• New configs: Short, Sportscar, Sportscar Alt.
• Re-released as new versions; originals retired: NASCAR Long, NASCAR Short, Open Wheel 2008-2011, Open Wheel 2012-2018, Open Wheel pre-2008.
• Rallycross config unaffected.

South Boston Speedway

• Fixed infield terrain appearing extra glossy.

Texas Motor Speedway

• Significant art overhaul (NASCAR Refresh).

Tsukuba Circuit

• (1000 – Chicane & 2000 – Full) Full pace lap now performed.
• Track surface bump map updated.
• Missing flagger added.

Watkins Glen International

• Significant art overhaul (NASCAR Refresh).
• Track limits, rules, and curbs updated.
• (Classic & Cup) Limits resemble real NASCAR weekend rules.
• (Boot & Classic Boot) Limits resemble sports car weekends.
• Bus Stop curbing updated to match NASCAR and IMSA configurations by layout.

World Wide Technology Raceway (Gateway)

NEW TRACK SCAN!

• Rescanned and remodeled to current state (surface and scenery).
• (Road Course) Config unaffected by artwork changes.

[Legacy] Phoenix Raceway – 2008

• (Rallycross) Eliminated course cuts by adding physical barriers.

See you on the track!