iRacing – 2023 Season 3 Release Notes

iRacing has deployed the 2023 Season 3 build for its online racing platform, introducing a nice list of new content, and upgrades for the 2023 Season 3 starting on June 12th.

This season’s update includes three new cars: Cadillac V-Series.R GTP, Ligier JS P320, and Porsche 911 GT3 R (992). iRacing also expands its track offerings to include MotorLand Aragón (7 configs) and Willow Springs International Raceway, as well as a new 2023 Cup config for Chicago Street Course.

For all the details, check out the full changelog below.

Season highlights include:

• Cadillac V-Series.R GTP
• Ligier JS P320
• Porsche 911 GT3 R (992)
• MotorLand Aragón (7 configs)
• Willow Springs International Raceway
• New Track Configuration: Chicago Street Course – 2023 Cup
• Dirt Racing Refresh Project
• New Spotter Calls and Updates for Race Control
• Hosted Session AI Heat Racing
• Phase 1 of Loading Time Improvements
• 3D Foliage System
• USB Audio Device Hot Swapping
• Cockpit Obstruction Removal Graphics Option
• New Damage Model for 11 Vehicles (Cadillac V-Series.R GTP, Dirt Late Model (ALL), Ligier JS P320, NASCAR Truck Series Trucks, Porsche 911 GT3 Cup (992), Porsche 911 GT3 R (992), and Renault Clio R.S. V)
• AI Racing for 8 Cars (Aston Martin DBR9 GT1, Cadillac CTS-V Racecar, Cadillac V-Series.R GTP, Chevrolet Corvette C6.R GT1, Ford GT GT2, Ligier JS P320, Porsche 911 GT3 R (992), and Radical SR10)
• AI Racing at 24 Track Configurations (Autodromo Nazionale Monza – GP without first chicane, Junior, and GP without chicanes, Chicago Street Course – 2023 Cup and Prototype, Circuit of the Americas – East and West, Irwindale Speedway – ALL FIVE Configs, MotorLand Aragón – ALL SEVEN Configs, Nashville Fairgrounds Speedway – Mini, New Smyrna Speedway, Twin Ring Motegi – East and Oval, and Willow Springs International Raceway)
• Hundreds of new and optimized official iRacing vehicle setups

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Official Webpage – www.iRacing.com

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Full 2023 Season 3 Release details:

iRACING UI:

Hosted Racing

• The Create Starting Grid functionality and button are now disabled whenever both Heat Racing and AI Opponent Roster are selected for an Event.

AI Racing

• AI Drivers have completed an extensive training course for participating in the Heat Racing format!
• – – Heat Racing is now available for Hosted Sessions using AI Rosters!
• – – This is a brand-new feature implementation for both AI Racing and the Heat Racing format.
• – – – – It is important to note that this feature is only available for Hosted Racing events at this time. AI Drivers still need the support of real humans in their Sessions or artificial chaos would surely ensue.

Tracks

• All Track location information has been standardized and updated. All Track locations are now identified by: City, State/Province, and Country.

Leagues

• Fixed an issue where the names of AI Drivers who won League Series Sessions were forgotten when viewing the League Season Schedule.

Paint Shop

• A new sponsor, Maconi Setup Shop, has been added to the Paint Shop!
• Fixed an issue with a missing font for the Stock Car Pro Series Class Cars.

SIMULATION:

Windows Support

• With the release of iRacing 2023 Season 3, the Windows 8.1 operating system is no longer able to successfully launch the iRacing application.
• – – Microsoft officially dropped support for Windows 8.1 on January 14th, 2023. As a result of this, it is no longer compatible with our software, and it will fail to launch.
• – – If you need help installing or running iRacing on Windows 10 or 11, please contact Customer Support here: https://support.iracing.com. Customer Support cannot get iRacing to work on Windows 8.1.

Race Servers

• Race Server capacity has been expanded to allow for nine different car models to be present within a Session.
• A user’s average lap time will no longer exclude laps that had been labeled as “invalid”.
• Fixed an issue where some Open Practice Race Servers were closing early due to inactivity.
• Fixed an issue where track temperatures were changing wildly if the Session was restarted (via AI Racing controls for example).

Loading

• Some adjustments have been made to how video memory resources are loaded.
• Some car loading algorithms have been optimized.

Dynamic Track

• The manner in which the dynamic track algorithm was calculated on surfaces has been improved, particularly along outside track edges.
• Fixed an issue where the visual display of some dynamic track data including dirt, marbles, and rubber was not functioning correctly on some track segments.

Race Control

• The algorithm for generating race splits based on car classes has been improved slightly.
• Short Parade Laps are now available for use at the following additional track configurations:
• – – Barber Motorsports Park – Full Course
• – – Brands Hatch Circuit – Indy
• – – Canadian Tire Motorsports Park
• – – Charlotte Motor Speedway – Roval, Roval – 2018, & Roval Long
• – – Circuit Park Zandvoort – Grand Prix
• – – Circuit Zolder – Grand Prix, & Alternate
• – – Daytona International Speedway – Oval – 2008, Road Course – 2008, & Moto – 2008
• – – Hockenheimring Baden-Württemberg – PEC – Outer
• – – Indianapolis Motor Speedway – Oval – 2009, Open Wheel Oval – 2009, Road Course – 2009, & Bike
• – – Long Beach Street Circuit
• – – Mount Panorama Circuit
• – – Phillip Island Circuit
• – – Talladega Superspeedway

Qualifying Scrutiny

• The Qualifying Scrutiny system has been adjusted to better handle cases where cars needed time to get up to speed after leaving their starting location.

Dirt Racing

• A variety of updates as a result of the Dirt Refresh Project have been enabled!
• – – This project enlisted a focus group of developers, vehicle dynamicists, and testers who did a deep dig through everything that makes our Dirt Racing tick, and they’ve emerged with some sweeping improvements and updates.
• – – Dirt track parameters as a whole have been updated, including:
• – – – – Racing dirt properties at all levels of wear and wetness
• – – – – Dirt height variance, depth, and hardpan behavior
• – – – – Track wear parameters
• – – – – Tire rubber accumulation
• – – – – Dirt displacement from tires
• – – – – The formation of track roughness and perturbation
• – – – – The progression of dynamic track data has been updated for all dirt tracks
• – – All Dirt Racing tires have been updated with some of the following improvements:
• – – – – New wear rates based on the hardness and wetness of the dirt racing surface
• – – – – Dirt displacement parameters
• – – – – The manner in which tires calculate their contact on undulating dirt surfaces has been improved.

AI Racing

• AI Drivers have completed an extensive training course for participating in the Heat Racing format!
• – – Heat Racing is now available for Hosted Sessions using AI Rosters!
• – – This is a brand-new feature implementation for both AI Racing and the Heat Racing format.
• – – – – It is important to note that this feature is only available for Hosted Racing events at this time. AI Drivers still need the support of real humans in their Sessions or artificial chaos would surely ensue.
• AI Drivers are now fully trained and capable drivers for the following new vehicles:
• – – Aston Martin DBR9 GT1
• – – Cadillac CTS-V Racecar
• – – Cadillac V-Series.R GTP
• – – Chevrolet Corvette C6.R GT1
• – – Ford GT GT2
• – – Ligier JS P320
• – – Porsche 911 GT3 R (992)
• – – Radical SR10
• AI Drivers have memorized and are ready to race for the gold at the following new tracks and configurations:
• – – Autodromo Nazionale Monza – GP without first chicane, Junior, and GP without chicanes
• – – Chicago Street Course – 2023 Cup and Prototype
• – – Circuit of the Americas – East and West
• – – Irwindale Speedway – ALL 5 Configurations
• – – MotorLand Aragón – ALL 7 Configurations
• – – Nashville Fairgrounds Speedway – Mini
• – – New Smyrna Speedway
• – – Twin Ring Motegi – East and Oval
• – – Willow Springs International Raceway
• AI Drivers have graduated from yet another season of advanced education classes. Training for 2023 Season 3 included the following programs:
• – – Kinesthetics for Preventing Pace Lap Panic
• – – [PHY-220] Drafting Speed Predictions
• – – White-Knuckle Door-to-Door Racing: A Retrospective
• – – Fast Cars Beware: Slow Cars
• – – Slow Cars Beware: Fast Cars
• – – AI Program Upgrade IV: Reaction Timing (Class: Pistol Shrimp)
• – – Danny S.’s Pre-School Seminar: Left-Hand Makes the “L”!
• – – The Technical Know-How Overlaps for GTP & Rocket Ship Piloting
• – – SuperTravel SuperProgram 2023: SuperSpeedways
• – – Lessons from Slot Car Racing on Racing Lines
• – – Tire Compound Connoisseur Magazine (Spring ‘23 Issue)
• – – Brake Pad Dissection – a Science Lab Qualified Course
• AI Drivers have improved their driving skills with the following vehicles:
• – – <Car Class> NASCAR Cup Series Next Gen Cars
• – – <Car Class> NASCAR Trucks
• – – BMW M Hybrid V8
• – – Dallara P217
• AI Drivers have improved their driving skills at the following track configs:
• – – Atlanta Motor Speedway – Oval
• – – Bristol Motor Speedway – Dual Pit Roads & Single Pit Road
• – – Canadian Tire Motorsports Park
• – – Daytona International Speedway – Oval
• – – Detroit Grand Prix at Belle Isle
• – – iRacing Superspeedway
• – – Talladega Superspeedway
• AI Drivers and their cars are now immediately removed from the world at the end of a Session. For safety.
• Fixed a handful of AI System issues including:
• – – Fixed an issue where custom Paint Schemes were not appearing on AI Drivers in Replays.
• – – Fixed an issue where AI Drivers could lag up to several seconds after the green before hitting the gas for standing starts in Hosted Sessions.
• – – Fixed an issue where AI Drivers could incur gain-time penalties while they were being towed back to their pit box. We don’t know what they were doing to Race Control staff to earn them, but it should be fixed now.
• – – Fixed an issue where multiple “Pitting In” notifications could be received.
• – – Fixed an issue with the display of AI Driver names on the Entries tab for Replays.
• – – Fixed an issue where AI Drivers appeared to be using the incorrect dive plane for the Dallara P217.

New Damage Model

• The New Damage Model is now active on the following additional vehicles:
• – – Cadillac V-Series.R GTP
• – – Dirt Late Model (ALL)
• – – Ligier JS P320
• – – NASCAR Truck Chevrolet Silverado
• – – NASCAR Truck Ford F150
• – – NASCAR Truck Toyota Tundra TRD Pro
• – – Porsche 911 GT3 Cup (992)
• – – Porsche 911 GT3 R (992)
• – – Renault Clio R.S. V
• Some New Damage Model system code has been reorganized to make future development easier.

Auto Fuel

• Spotters and Team Members may now control their driver’s Auto Fuel state.

Spotter

• The iRacing Spotter System has received some updates to help make it more accurate and dynamic. It is now better able to read Race Control events as they occur on the track, and a variety of new Spotter Calls have been added:
• – – Car in Front/Behind is Pitting
• – – Faster Car Approaching
• – – Gaining/Losing the car in front
• – – Leader Change
• – – Leader Lap Time
• – – Leader is Lapping You
• – – Session New Fastest Lap
• – – Your Personal Best Lap Time
• – – Time Remaining in Session 20/10/5 Minutes
• – – Settings for these new messages have been added to the “[SPCC]” section of the “app.ini” file.
• – – – – These messages will only play if “Chattiness” is set to MEDIUM or HIGH, and they are turned on in the “app.ini” file, which they are by default.
• A new “Silence” function has been added for the Spotter.
• – – In the Sound Options Menu, users can bind a key press that will interrupt and stop any current spotter message and temporarily disable future messages for a short duration. The duration of the hush may be adjusted via the “hushDuration” variable in the “app.ini” file, found in the “[SPCC]” section.
• “Leader Car” calls now returns the leader car in the same class as the player car. This means all spotter messages pertaining to the leader will now reference the leader in the same class as the player, instead of the outright leader.
• – – Messages include:
• – – – – Leader is pitting now
• – – – – Leader is at Start/Finish
• – – – – You’re catching the leader
• – – – – One lap to win (if you are the leader car)
• Both Italian spotter packs have been updated and improved!
• – – Many thanks to Renzo A. Olivieri and Marco Arcidiacono!
• The Race Laps remaining spotter message logic has been updated.
• Fixed an issue with the fuel spotter calls when the pit entry location was dramatically different from the Start/Finish line location.

Graphics

• A new Graphics Option has been added: Hide Cockpit Obstructions.
• – – This option hides several visually obstructive elements from the world, including: Halo, A-Pillar, and Rock Screen.
• Vehicles that utilize the New Damage model have had their car model format adjusted to reduce video memory demands.
• Improved the accuracy of steering angles for viewing your opponents’ cars’ wheels.
• Adjust brake light exposure on some cars to try to prevent them from turning white when viewed from a distance.
• Updated the system which processes the hiding and displaying of halos for Replays.
• GGX blended dirt texture shaders have been improved.
• SpeedTree lighting has been updated.
• The graphics Option for SpeedTree self-shadowing has been removed.
• – – The visual benefits were minimal and the processing needs were demanding.
• Tooltips have been added for SSAO parameters.
• A new SDK for SpeedTree has been integrated.
• Fixed an issue where the reverse and unseen sides of some SpeedTree faces were being rendered, wasting processing time.
• Fixed an issue where distortion particles were not rendering properly unless they were inside the car.
• Fixed an issue where motion blur would trigger whenever the garage was visited.
• Fixed an issue where motion blur was appearing at different amounts on different parts of the same car.

3D Foliage System

• A new environmental graphics feature option has been added to the graphics options menu: Foliage!
• – – The new Foliage system procedurally generates 3D foliage of an appropriate biome type at specified tracks. Foliage may include grasses, shrubs, boulders, cacti, flowers, and other small environmental assets. 3D foliage has no impact on driving or physics but should decorate the world much more realistically.
• – – In the Graphics Options menu, there are several levels of detail that may be selected for use by the 3D Foliage System which can customize your visual experience and your rendering performance. You may also select to disable the system entirely.
• – – With this release, only Willow Springs International Raceway has been seeded by the new 3D Foliage system so far, but Mother Nature always finds a way to spread!

Visual Effects

• Lighting for particle effects has been improved.
• The PopcornFX SDK has been updated to the latest version.

Audio

• Audio Hot Swap support has been added to iRacing!
• – – Forgot to plug in your headset before the race starts? iRacing now detects your device when it’s plugged in, even during a race. If you’ve selected “System Default” from the sound options, audio automatically moves to the new device when the default changes. If you have selected a specific audio endpoint, it activates once it’s available.
• – – Runtime audio device switching is now supported. When the default device is selected, a new default device can be chosen in Windows, and the Simulator will use the new device. If a specific device is selected, it will be used in the Simulator when it is activated in Windows.
• – – – – disableWindowsCoreAudio=0     |     When enabled (1), this option disables any Windows Core Audio integration (native Windows audio).
• – – – – disableAudioDeviceChangedEvents=0     |     When enabled (1), this option disables dynamic audio device changes. 
• – – Please note: Audio Hot Swapping is enabled by default.
•  A new Audio Options setting has been added which allows you to assign a System Communication Default Device.
• A new audio option, “ambientMusicDisabled”, has been added to the “app.ini” file.
• – – 0 is the default value. Setting this parameter to 1 will disable all environment music that is normally played over the PA system while in the Simulation.
• Dynamic brake sounds have been rebalanced.
• Audio for load transmission on a variety of cars has been improved.
• The engine audio for all Pace Cars has been adjusted and optimized.

Environment

• New color and texture variations have been added for a variety of parked vehicles found around the tracks.

Interface

• Enhanced the right-click pop-up menus on the Session/Replay screen, and the Driving screen, to provide the option for private messaging (PM-ing) an individual user, the current driver of a car, or a car’s entire Team (which includes a driver’s spotters/crew in non-team sessions).
• – – Existing Admin/Race Control operations applied to a car that would have PM-ed someone on the team have been updated to message the whole team, instead of just one team member.
• – – Manually PM-ing a car number using “/#N”, with N being the displayed car number, including leading zeros if shown, will now PM the whole team.
• – – To PM just the team member that’s currently driving the car, use “/#N@” (add the @ symbol immediately after the car number). If the team’s car is in its pit stall but the driver has gotten out of the car, that user is still PM-ed. If the team’s car is not even in the world, no PM is sent when attempting to message its current driver, and you will be informed of this.
• – – – – To prevent receiving duplicate messages, if you would receive a chat message you sent because the target includes you (you’re on the target team, you’re the target team’s driver, or you’re talking to yourself!), you only receive the message due to being associated with the target of the message. That is, the message is not separately echoed directly back to you.
• – – You can continue to manually PM an individual using the existing mechanism of specifying their name after the “/”.
• Text chat responses to Race Control Admin commands now identify the targeted entry with the team name and car number, instead of the name of the driver. In non-driver-swap events, the “team name” is the driver’s name.
• An option for the units selection has been updated to “English (USA)” for clarity.

Camera

• A new highest option level, “Ultra”, has been added for Motion Blur.
• Fixed an issue with Driver View Pitch/Roll chassis effects so that when the view is locked to the horizon the car can now roll farther without the camera following the position of the car. This should help reduce motion sickness in VR if you use this feature.
• Fixed an issue for whenever a car’s center-of-mass left the camera frame, all motion blur on the car was lost.
• Fixed an issue where the focus of the camera was getting unwanted motion blur for cockpit cameras.
• Fixed an issue with motion blur on cars when using multiple displays.

Controls

• The automatic parking brake that holds a car still when you come to a stop will now fully apply itself anytime the car comes to a stop, rather than waiting for the user to hold the brake pedal down once stopped. This should help prevent cars from accidentally rolling away when you come to a quick stop but fail to fully engage the brake pedal.
• The Reset Button now prevents users from putting you into the car if your steering wheel needs assignment. Doing this now will take you to the Controls Wizard and allow you to assign and calibrate your driving controls.
• The test for XInput devices has been simplified.
• Fixed an issue that could cause some joysticks to fail to calibrate properly if the previous calibration was similar enough to the new calibration.
• Fixed an issue in the Options screen where the inputs (shifter, wheel, etc) would not respond if a button was held down on a wheel.

Force Feedback

• When calibrating a wheel, iRacing now checks that your selected maximum wheel angle and Force Feedback status match what we expect based on your detected hardware. A notification will appear if these do not match.
• – – This is an effort to detect common errors with certain wheels, either that do not have the correct drivers installed or that have a maximum wheel angle set to a very low value by default. If you receive this notification or need help setting up your racing wheel, please reach out to Customer Support.
• iRacing will now try to automatically detect your racing wheel’s maximum force, and adjust the wheel force slider accordingly. This is used to help us safely and automatically calculate the force levels to send to your wheel. We can’t always know how your wheel is set up, so this may be an overestimate of your maximum force level. This is the safer guess, but in some instances, it may limit how strong of a force you can request from the simulation. In those cases, you can turn off the “auto-mode” and manually set your wheel’s peak value, if known.
• Improved the force auto-tune button so that it takes the wheels maximum force into account. This will lighten up the auto-tune as the wheel force increases.
• – – There is a new scaling parameter in the “app.ini” file, “autoForceFactor”. This value defaults to 0.5, and allows you to adjust the aggressiveness of the reduction. Setting “[Force Feedback] autoForceFactor=1” will remove all reduction, giving you a 1:1 force output. Setting it to 0 will effectively always give you 6 Nm of peak force at the wheel. Any value in between will blend between these two extremes. The default value of 0.5 should be a good value for most users.
• A mappable button (Ctrl-A) has been added to apply the Auto Force adjustment found in the F9 Black Box.
• For the Auto Force Feedback peak force detection, data collected when the car is out of control will now be suppressed. Also, data collection will be paused for several seconds immediately after an incident. The goal is to make this system more stable and consistent, even if you wreck.
• For Force Feedback, a safety check has been added to detect if the wheel jumped in position (ie: we lost/gained communication with the wheel). If a communication interruption is detected, Force Feedback will be suppressed momentarily for safety.
• A new slew rate limiter filter that is controlled via the smoothing slider is now available in the Force Feedback options tab.
• – – This filter limits the rate of change of the force feedback signal so your wheel can’t accelerate beyond a fixed value. In essence it smooths out the large jolts while leaving the rest of the signal alone. A value of 25% will have almost no impact on your regular driving, while softenting out curb or wall impacts, and a value of 75% will smooth out most rumble strips and make curb hits almost invisible. If you find that you have to turn down the FFB forces below the level you would like because the jolts from curbs or accidents are too large, then try turning this filter up instead. Try a value of 50% to start, and turn it down to 25% if you feel it is too much.
• – – – – You can go back to the old boxcar filter via the “[Force Feedback] smoothingFilterType=1” entry in the “app.ini” file.

Replays

• Chat messages and incident point accruement are now saved and viewable with Replays.
• Fixed an issue where custom Paint Schemes were not appearing on AI Drivers in Replays.

Telemetry

• Live brake line pressure (LFbrakeLinePress) has now been zeroed out and will no longer show a value.
• – – Disk based brake line pressure is still available (LFbrakeLinePress), and now has any ripple from the abs modulation included in its value.
• – – A new BrakeABSCutPct value has been added to the disk based telemetry that shows the percent of brake force reduction being applied by the ABS system.
• Driver suit, body, face, and helmet type ids have been added to the session string.

Official iRacing Sporting Code

• A variety of updates have been made to the Official iRacing Sporting Code, including:
• – – A new section 6.8.3. has been added which describes the correct behavior for Starting from Pits.
• – – Restructured the paragraphs describing Rolling Starts for improved clarity for both Oval and Road racing.
• – – Better explained how multiclass cars grid, and defined what starts a multiclass race.
• – – License Class images have been updated.
• – – Identified that Joker Laps may not be used for time-based competitions at Rallycross Tracks.
• – – A reminder has been added that it is unacceptable for suspended or restricted Members to use alternate accounts.
• – – Identified that nefarious tactics may also not be used during Races, and removed a poor example of nefarious behavior.
• Review the latest version of the Official iRacing Sporting Code here:
• – – https://www.iracing.com/iracing-official-sporting-code/

CARS:

<Car Class> GT1 Cars

• AI Racing is now available for both GT1 Class Cars!
• – – Aston Martin DBR9 GT1
• – – Chevrolet Corvette C6.R GT1

<Car Class> GT3 Cars

• 2023 Season 3 BoP Updates, including:
• – – Engine fuel maps have been locked to the full power map only. Fuel save maps have been removed in accordance with current real world rulesets.
• – – Differential nomenclature has been updated to show friction faces instead of clutch plates. Friction faces are equivalent to the clutch plate value divided by 2. As an example, 4 plates is equivalent to 8 friction faces. Additionally, the range is now 4 to 12 friction faces in 2 face increments.
• Minimum rear toe-in values have been set to 1.5mm per side.
• Spring perch adjustment fidelity has been increased to 0.25 mm from 0.50 mm to allow for finer control of ride heights in the garage.
• Brake noise levels have been fine-tuned.
• iRacing setups have been updated.

<Car Class> GTP Cars

• A new Car Class, GTP Cars, has been created which includes:
• – – BMW M Hybrid V8
• – – Cadillac V-Series.R

<Car Class> NASCAR Classic 1987 Cars

• iRacing setups have been updated.

<Car Class> NASCAR Cup Series Next Gen Cars

• Artwork for the ST\RC 2 Inch Spoiler Aero Package is now enabled at short ovals and road courses for these cars where applicable.
• The Intermediate rear spoiler package has been updated when running at Texas Motor Speedway – Oval and Kansas Motor Speedway.
• A dirt diffuser will now appear on these cars when racing at applicable tracks.
• Tire parameters have been updated for when these cars are running at short tracks.
• Dirt tire wear rates and textures have been increased.
• For the New Damage Model, lowered hood and trunk mount angular break limits.
• Tire spin animation has been improved at faster speeds.
• iRacing setups have been updated.

<Car Class> NASCAR Trucks Series Trucks

• The New Damage Model is now enabled for these vehicles!
• Only “Race” and “Qualifying” may now be selected for tape values.
• Opponent vehicles should now appear to have an appropriate amount of tape.
• The visual appearance of tape in use has been adjusted for accuracy.
• iRacing setups have been updated.

<Car Class> NASCAR Xfinity Cars

• Only “Race” and “Qualifying” may now be selected for tape values.
• The visual appearance of tape in use has been adjusted for accuracy.
• iRacing setups have been updated.

<Car Class> Stock Car Pro Series Cars

• iRacing setups have been updated.

<Car Class> Touring Cars

• Fixed an error in the tire properties for these cars where off-track surfaces were acting much smoother than they should have been.
• Ambient occlusion artwork for wheel spokes and brake calipers has been updated.

<Car Class> V8 Supercars

• iRacing setups have been updated.

ARCA Menards Chevy / Gen 4 Cup

• (ALL) – A New Damage Model tuning pass has been completed which lowers break limits for hood, nose, and rear, lowers stiffness for trunk mounts, and updates the scrape damage progression on the sides of the car.
• (ALL) – Fixed an issue where the UI model for this car was missing the window nacta duct.
• (ALL) – iRacing setups have been updated.

Aston Martin DBR9 GT1

• This car is now available for AI Racing!

Audi 90 GTO

• iRacing setups have been updated.

Audi R8 LMS GT3

• Fixed a minor issue with windshield wiper textures.

BMW M4 GT3

• Fixed a rounding difference in the display of brake bias values between the black box and the DDU.
• Fixed an issue where the DDU display was mislabeled.
• Fixed an error with the brake bias knob rotation.
• Fixed an issue with the traction control lamp.

BMW M4 GT4

• Brake noise levels have been fine-tuned.

BMW M Hybrid V8

• 2023 Season 3 BoP Updates, including:
• – – Vehicle masses and inertias have been updated.
• – – Brake parameters have been adjusted
• – – Fuel capacity has been increased.
• Aerodynamic side-force calculations have been updated.
• Hybrid system has been reconfigured so the engine and MGU-K come in together as throttle is applied.
• Fixed an issue with the hybrid system where the target battery SoC passed to the engine did not match the driver’s setting.
• Fixed an issue that could prevent the rear of the car from being fixed, causing the driver to be stuck in the pits.
• For the Old Damage Model, fixed an issue where not all parts of the car would appear to deform with damage.
• iRacing setups have been updated.

Cadillac CTS-V Racecar

• AI Racing is now available for this car!

Cadillac V-Series.R GTP

• NEW CAR!
• – – The Cadillac V-Series.R GTP is now available for purchase and racing!
• – – The Cadillac V-Series.R is General Motors’ latest top-level prototype entry for global sports car competition. Built to the universal Le Mans Daytona h regulations that made their debut for the 2023 season, the V-Series.R was launched in both the IMSA WeatherTech SportsCar Championship with entries from Chip Ganassi Racing and Action Express Racing, and internationally with another Ganassi-run team. The Cadillac V-Series.R succeeds the Cadillac DPi-V.R, which scored five consecutive 24 Hours of Daytona wins from 2017 to 2021. Powered by a 5.5-liter V8, the V-Series.R has the largest engine of any cars to compete in the GTP class. It was able to score its first IMSA win in the 2023 12 Hours of Sebring with Alexander Sims, Pipo Derani, and Jack Aitken behind the wheel, recovering from an early incident and surviving a race of attrition in IMSA’s hotly contested GTP class.
• – – Purchase the Cadillac V-Series.R GTP from the iRacing store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=168
• The New Damage Model is enabled for this car!
• AI Racing is available for this car!

Chevrolet Corvette C6.R GT1

• This car is now available for AI Racing!

Dallara F3

• iRacing setups have been updated.

Dallara iR-01

• iRacing setups have been updated.

Dallara IR18

• Vehicle model has been adjusted to remove some rogue duplicate objects that could appear during collisions. 
• iRacing setups have been updated.

Dallara P217

• Fixed an issue that could prevent the rear of the car from being fixed, causing the driver to be stuck in the pits.

Dirt Late Model

• (ALL) – The New Damage Model is now enabled for these cars!
• (ALL) – As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: vehicle physics, collision shapes, tire properties, and tire stagger.
• (ALL) – Rear droop chain options and max deck height garage ranges have been updated.
• (ALL) – iRacing interface images for this car have been updated.
• (ALL) – iRacing setups have been updated.

Dirt Midget

• As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: collision geometry, vehicle physics, brake balance, tire properties, and tire stagger.
• iRacing setups have been updated.

Dirt Modified

• (Both) – As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: vehicle physics, tire stagger, tire properties, brake parameters
• (Both) – Fixed an issue with the UI images for these cars.
• (Both) – iRacing setups have been updated.

Dirt Sprint Car

• (ALL) – As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: vehicle physics, torque, aerodynamic model, bump stops, tire properties, tire wear, tire stagger, and tread pattern.
• (ALL) – Gear ratios have been updated.
• (410) – Engine sounds have been improved.
• (ALL) – iRacing setups have been updated.

Dirt Sprint Car Non-Winged

• (ALL) – As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: vehicle physics, torque, aerodynamic model, bump stops, tire properties, tire wear, tire stagger, and tread pattern.
• (ALL) – Gear ratios have been updated.
• (410) – Engine sounds have been approved.
• (ALL) – iRacing setups have been updated.

Dirt Street Stock

• As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: vehicle physics, aerodynamic model, tire properties, tire wear, tire stagger, and tread pattern.
• For the New Damage Model, scrape damage progression has been updated.
• iRacing setups have been updated.

Dirt UMP Modified

• As part of the Dirt Refresh Initiative, a substantial overhaul of vehicle parameters has been completed, including: vehicle physics, aerodynamic model, and tire properties.
• Engine sounds have been improved.

Ferrari 488 GT3 Evo 2020

• Eliminated the ability for launch control to feather the clutch. This also allows the drivetrain to re-engage above 70 KPH if the clutch had previously been used to coast at a speed under 70 KPH. This fixes an issue where a driver could enter a state where the clutch could not be engaged at speed.
• Fixed a misalignment with the brakelights.
• Fixed an issue where headlight beams were not yellow when the IMSA Series art package was in use.
• Brake noise levels have been fine-tuned.

FIA F4

• This car, formerly iRacing Formula iR-04, has been renamed to FIA F4!
• Racing Series decals have been updated.
• A New Damage Model tuning pass has been completed which lowers stiffness of nose mounts, nose, and front wing shapes.
• iRacing setups have been updated.

Ford GT GT2 / GT3

• (GT2) – This car is now available for AI Racing!
• (ALL) – Removed a high pitched audio artifact from the engine sounds.

Ford Mustang FR500S

• Relative speed for this car has been adjusted, so that it now grids in an appropriate order for multiclass racing.

Formula Renault 2.0

• New Damage Model parameters have been updated.

Formula Renault 3.5

• iRacing setups have been updated.

Indy Pro 2000 PM-18

• iRacing setups have been updated.

Late Model Stock

• iRacing setups have been updated.

Legends Ford ’34 Coupe

• (Dirt) – Tire parameters have been updated, and the steering box has been upgraded.
• (Dirt) – For the New Damage Model, front and rear bumper collision shapes have been adjusted.
• iRacing setups have been updated.
• (Dirt) – iRacing setups have been updated.

Ligier JS P320

• NEW CAR!
• – – The Ligier JS P320 is now available for purchase and racing!
• – – Ligier’s latest design to compete under global LMP3 regulations, the Ligier JS P320 launched in the summer of 2019. The JS P320 succeeded the JS P3 that had been running since 2015, scoring hundreds of wins and multiple championships across global and international series. It represented major changes from its predecessor in bodywork and suspension, and added traction control and a new, more powerful Nissan V8 engine as part of a new generation of LMP3 regulations. In its first two seasons as a part of the top-level IMSA WeatherTech SportsCar Championship, Ligier entries dominated the LMP3 class. Riley Motorsports finished first and third in the standings in 2021, led by driver’s champion Gar Robinson, while the CORE Autosport duo of Colin Braun and Jon Bennett finished second in that inaugural season before winning the title in 2022. For 2024 and beyond, the JS P320 and all other LMP3s will compete exclusively in the IMSA VP Racing SportsCar Challenge, where it will be the faster car in multi-class racing exclusively alongside GT4 cars.
• – – Purchase the Ligier JS P320 from the iRacing store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=165
• The New Damage Model is enabled for this car!
• AI Racing is available for this car!

Lotus 79

• iRacing setups have been updated.

Lucas Oil Off Road Pro 2 Lite

• Tire properties, center-of-gravity, and bottom-end torque have been updated.
• iRacing setups have been updated.

Lucas Oil Off Road Pro Trucks

• (ALL) – Tire properties, center-of-gravity, and bottom-end torque have been updated.
• (ALL) – iRacing setups have been updated.

McLaren 570s GT4

• Damage decal textures have been updated.

Mercedes-AMG GT3 2020

• The free length of dampers at Nürburgring Nordschleife has been increased to match the GT3 Class.
• A new iRacing Livery “BEAST of the GREEN HELL” has been added as paint pattern #5. The original paint pattern #5 has been moved to paint pattern #28.
• IWC logos have been added to paint schemes.

Mercedes-AMG GT4

• IWC logos have been added to paint schemes.

Mercedes-AMG W13 E Performance

• Driver paddle shifting animations have been updated.

Modified – SK / NASCAR Whelen Tour Modified

• (ALL) – iRacing setups have been updated.

Nissan GTP ZXT

• Tie-down brackets have been removed from the wheels.

Porsche 911 GT3 Cup (992)

• The New Damage Model is now enabled for this car!

Porsche 911 RSR

• Brake noise levels have been fine-tuned.

Porsche 911 GT3 R (992)

• NEW CAR!
• – – The Porsche 911 GT3 R (992) is now available for purchase and racing!
• – – The latest in a long line of Porsche 911s built for sports car racing, the 992-spec edition of the Porsche 911 GT3 R follows in the footsteps of the 991-based GT3 R that debuted for the 2019 racing season. It also joins the current model of the Porsche 911 GT3 Cup car, which debuted in 2021, as a racing Porsche based on the 992 generation. In its inaugural IMSA WeatherTech SportsCar Championship season, five teams—Pfaff Motorsports, MDK Motorsports, Wright Motorsports, AO Racing Team, and Kelly-Moss with Riley—have all brought at least one 992 to the grid across the GTD and GTD Pro divisions. The 911 GT3 R (992) is powered by a 4.2-liter Porsche flat-six engine, a step up in displacement from the 4.0-liter units in the previous car. Its first IMSA win came at the hands of Pfaff’s GTD Pro squad of Klaus Bachler, Patrick Pilet, and Laurens Vanthoor in the 2023 12 Hours of Sebring, and the duo of Bachler and Pilet backed it up the next month with a third place finish on the streets of Long Beach. Kelly-Moss with Riley took the car’s first GTD podium at Sebring as well with Alec Udell, Julien Andlauer, and David Brule.
• – – Purchase the Porsche 911 GT3 R (992) from the iRacing store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=169
• The New Damage Model is enabled for this car!
• AI Racing is available for this car!
• With the addition of the Porsche 911 GT3 R (992), the existing Porsche 911 GT3 R is moving to our Legacy content. Its name has been prepended with the [Legacy] tag.
• – – The [Legacy] Porsche 911 GT3 R remains available for use and purchase. Its price has been reduced to $2.95.
• – – Customers who purchased the Porsche 911 GT3 R within the past 180 days receive a full refund in iRacing Credits. Customers who purchased the Porsche 911 GT3 R within the past 180 to 360 days receive a 50% refund in iRacing Credits. Customers who purchased the Porsche 911 GT3 R more than 360 days ago receive a 25% refund in iRacing Credits.

Radical SR10

• Vehicle physics have been significantly updated including: tires, aerodynamic properties, and differentials.
• AI Racing is now available for this car!
• iRacing setups have been updated.

Ray FF1600

• Fixed an error with master cylinder diameters and maximum pedal forces based on updated real world documentation.
• Fixed some ambient occlusion rendering issues with the cockpit.
• Improved suspension textures.
• Fixed an issue where this car was not considered an Open Wheel car for search filters.
• iRacing setups have been updated.

Renault Clio R.S. V

• The New Damage Model is now enabled for this car!
• Fixed an issue where the steering wheel rotation rate did not match the drivers hand animations.

Silver Crown

• iRacing setups have been updated.

Street Stock

• iRacing setups have been updated.

Super Late Model

• iRacing setups have been updated.

USF 2000

• iRacing setups have been updated.

[Legacy] Dallara – 2009

• Fixed an issue with duplicated dashboard elements.

[Legacy] Ferrari 488 GT3

• iRacing setups have been updated.

[Legacy] Mazda MX-5 Cup & Roadster – 2010

• Fixed an issue where driver models could temporarily pop through the roof after extreme counter-clockwise steering wheel turns.

[Legacy] Porsche 911 GT3 Cup (991)

• Brake noise levels have been fine-tuned.

[Legacy] Porsche 911 GT3 R

• With the addition of the Porsche 992 GT3 R, the existing Porsche 911 GT3 R is moving to our Legacy content. Its name has been prepended with the [Legacy] tag.
• – – The [Legacy] Porsche 911 GT3 R remains available for use and purchase. Its price has been reduced to $2.95.
• – – Customers who purchased the Porsche 911 GT3 R within the past 180 days receive a full refund in iRacing Credits. Customers who purchased the Porsche 911 GT3 R within the past 180 to 360 days receive a 50% refund in iRacing Credits. Customers who purchased the Porsche 911 GT3 R more than 360 days ago receive a 25% refund in iRacing Credits.

TRACKS:

Autodromo Nazionale Monza

• AI Racing is now available at GP without first chicane, Junior, and GP without chicanes configs!

Barber Motorsports Park

• Fixed an issue with the timing tower displaying the “0” digit.

Chicago Street Course

• This track has been officially renamed to Chicago Street Course.
• New Track Config, 2023 Cup!
• – – A new track config, 2023 Cup, is now available for Chicago Street Course! The 2023 Cup config is the track layout to be used by NASCAR during the 2023 real world event.
• – – Have you ever wanted to know what NASCAR Cup Series racing would look like on city streets? NASCAR and iRacing partnered in the fall of 2020 to covertly shut down and scan some of the most familiar blocks of the city of Chicago to help bring that dream to life in the virtual world. You’ve seen it on FS1 as part of the eNASCAR iRacing Pro Invitational Series with the Next Gen cars and now’s your chance to drive it yourself! At just over two miles, the Chicago Street Circuit incorporates parts of Michigan Avenue and Lake Shore Drive in a unique, nearly figure-eight layout. The picturesque city setting features Grant Park and the iconic Buckingham Fountain among the historic buildings and iconic skyscrapers in the background. Mixing full-throttle straightaways with heavy braking corners, Chicago manages to nail the essence of any great street circuit, while adding a flavor unlike any other.
• – – Purchase the Chicago Street Course from the iRacing store here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=483
• AI Racing is now available at both 2023 Cup and Prototype track configs!

Circuit of the Americas

• AI Racing is now available at Circuit of the Americas – East and West!

Circuito de Jerez – Ángel Nieto

• Some floating tirewalls have been grounded.

Circuit de Nevers Magny-Cours

• The SpeedTree implementation at this track has been overhauled.

Crandon International Raceway

• Improved the surfaces in the straights between Turn 3, Turn 4, and Turn 5.
• Some course-cut penalties have been improved.

Daytona International Speedway

• (Oval and Oval – 2008) – Pace car speed has been updated to 70 MPH.

Eldora Speedway

• A new dirt scrape visual effect has been added to dirty walls in corners.

Federated Auto Parts Raceway at I-55

• Fixed an issue where some fencing was incorporeal.
• Fixed an issue with the contrast of the top lane.

Fuji International Speedway

• Fixed some position issues with a few track cameras.

Hickory Motor Speedway

• Track surface bumpmap has been regenerated, and the track grip properties have been updated.

Hungaroring Circuit

• The SpeedTree implementation at this track has been overhauled.

Indianapolis Motor Speedway

• Fixed an issue with an extra shiny building in Gasoline Alley.

Irwindale Speedway

• AI Racing is now available at ALL FIVE configs for this track!
• The attention of the Turn 4 crowd has been redirected towards the track.

Lernerville Speedway

• Fixed an issue where a pit stall was positioned poorly in relation to a light pole.
• Fixed an issue with the contrast of the top lane.

Limaland Motorsports Park

• Fixed an issue with the contrast of the top lane.

Lincoln Speedway

• The SpeedTree implementation at this track has been overhauled.

Martinsville Speedway

• Track surface textures and shaders have been updated.

MotorLand Aragón

• NEW TRACK!
• – – A new Road Track, MotorLand Aragón, is now available for racing and purchase!
• – – MotorLand Aragón includes a whopping SEVEN track configurations!
• – – – – Grand Prix, National, West, Motorcycle Grand Prix, Motorcycle National, Outer, and Touring Car.
• – – One of Spain’s newest permanent racing circuits, MotorLand Aragón broke ground in the winter of 2005 and opened nearly four years later. One of many tracks worldwide designed by Hermann Tilke, the track hosts a diverse slate of national and international car and motorcycle events, ranging from touring car and GT cars to major feeder open-wheel divisions. The 3.321-mile Grand Prix circuit at Aragón boasts 18 turns, as well as two major straightaways—one featuring the start-finish line, and one after the 90-degree Turn 15. The length of the latter depends on the configuration; for cars, it heads toward a sharp hairpin for Turn 16, while the motorcycle layout skips this section for a more gradual Turn 16 that sweeps directly into the frontstretch. Aragón also boasts a smaller National layout that dives into the infield after Turn 2 and brings racers through to the backstretch.
• – – Purchase MotorLand Aragón from the iRacing store here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=475
• AI Racing is available at ALL SEVEN configs for this track!

Mount Washington Auto Road

• The SpeedTree implementation at this track has been overhauled.
• Fixed an issue where the track temperature was not being calculated correctly at certain weather temperatures.

Nashville Fairgrounds Speedway

• AI Racing is now available at Nashville Fairgrounds Speedway – Mini!

New Smyrna Speedway

• AI Racing is now available at New Smyrna Speedway!

Nürburgring Combined

• The unused pit road is now blocked off to prevent confusion.

Nürburgring Nordschleife

• Fixed an issue where the pit road grandstands could disappear and lose collision parameters at certain graphics settings.
• A floating cone at pit entry has been grounded.

Phoenix Raceway

• Ambient sounds have been added at this track.

Red Bull Ring

• Fixed an issue with the surface type for an area beyond the curb in the final turn.

Sebring International Raceway

• The SpeedTree implementation at this track has been overhauled.

Talladega Superspeedway

• Pace car speed has been updated to 70 MPH.

Twin Ring Motegi

• AI Racing is now available at Twin Ring Motegi – East and Oval!

Virginia International Raceway

• The SpeedTree implementation at this track has been overhauled.
• Loading background has been updated.

Wild Horse Pass Motorsports Park

• Track surface parameters have been updated.

Williams Grove Speedway

• Some fences have been added to prevent cars from leaving the world.

Willow Springs International Raceway

• NEW TRACK!
• – – A new Road Track, Willow Springs International Raceway, is now available for racing and purchase!
• – – One of the United States’ finest hidden gems for road racers, Rosamond, California’s Willow Springs International Motorsports Park is a complex of multiple diverse and challenging courses. Headlined by the 2.5-mile Willow Springs Raceway, also known as “Big Willow,” the facility opened in November 1953, making it the oldest permanent road course in America; in 1996, it was also declared a California Point of Historical Interest. Each of Willow Springs’ courses has a distinct character, but all feature challenging elevation changes, technical corners, and one of the most picturesque backgrounds of any circuit in the West. The track has hosted everything from the NASCAR Cup Series in the 1950s to budget-level endurance racing in modern times. Big Willow is beloved among the amateur racing community for producing exciting racing with an approachable but fun layout.
• – – Purchase Willow Springs International Raceway from the iRacing store here: https://members.iracing.com/membersite/member/TrackDetail.do?trkid=481
• AI Racing is available at this track!
• This track includes the new environment 3D Foliage System!