iRacing – 2023 Season 4 Release Notes

iRacing has released the 2023 Season 4 build, and it’s massive. This update introduces no less than five new cars, a new track, a re-scanned track, and a good number of new features and improvements. Check out the full changelog below for all the details.

Season highlights include:

• Acura ARX-06 GTP
• Ferrari 296 GT3
• NASCAR Classic Pontiac Grand Prix – 1987
• Porsche 963 GTP
• Super Formula SF23
• Circuit de Lédenon
• Kern County Raceway Park (Asphalt Track, Dirt Track, Legends, and Dirt Mini Oval)
• Circuit Zandvoort, 2023 rescan and full update (Grand Prix, Grand Prix w/ Chicane, Nationaal, and Oostelijk)
• SIM Optimizations (Improved loading times, & reduced memory usage footprint)
• Ability to load 12 car models per Session
• Rolling drag improvements for tires on off-track surfaces
• Additional Spotter Calls (Incidents & off-track ahead/behind, damage report, time/laps remaining, and Strength of Field report)
• Driver Audio Filters (ear protection and helmet effects)
• Results Page overhaul and Search function
• New Damage Model for 12 vehicle models [Acura ARX-06 GTP, Dirt UMP Modified, Ferrari 296 GT3, Ford Mustang FR500S, Modified – SK / NASCAR Whelen Tour Modified (both models), NASCAR Classic Pontiac Grand Prix – 1987, NASCAR Xfinity Class Cars (all 3 models), Porsche 963 GTP, and Super Formula SF23] 
• AI Racing for 8 vehicle models [Acura ARX-06 GTP, ARCA Menards Chevy / Gen 4 Cup (Gen 4 Cup Car), Audi 90 GTO, Ferrari 296 GT3, NASCAR Classic Pontiac Grand Prix – 1987, Nissan GTP ZXT, Porsche 963 GTP, Super Formula SF23]
• AI Racing at 18 track configurations [Circuit de Lédenon, Circuit Zandvoort (ALL 4 Configs), Kern County Raceway Park (Asphalt Oval & Legends), The Milwaukee Mile, Nürburgring Grand-Prix-Strecke (Grand Prix w/out Arena, Kurzanbindung w/out Arena, Sprintstrecke), Road Atlanta (Club, Short), and [Legacy] Silverstone Circuit – 2008 (ALL 5 Configs)]
• Hundreds of professionally crafted iRacing vehicle setups

iRacing Quote:

The iRacing garage expands by five bays to include: Acura ARX-06 GTP, Ferrari 296 GT3, NASCAR Classic Pontiac Grand Prix – 1987, Porsche 963 GTP, and Super Formula SF23. In addition, the iRacing map plants two new flags and updates a long-awaited third to include: Circuit de Lédenon, Kern County Raceway Park (Asphalt Track, Dirt Track, Legends, and Dirt Mini Oval), and a complete rebuild of Circuit Zandvoort using 2023 data (Grand Prix, Grand Prix w/ Chicane, Nationaal, and Oostelijk).

Our senior software engineers have continued their mission to squeeze every bit of optimization they can into the Simulator, and have further improved load times from last season as well as reduced the memory required to run iRacing. This has enabled us to allow up to twelve different car models to be in the same Session at a time without disrupting performance.

Our Spotter system has also continued training from the previous season, and is ready to assist you with a variety of new calls, including: incidents or off-track events are ahead or behind you, reporting on damage taken and repair time estimates, reporting on the Strength of Field for the Session, and warning you when you’re on your last laps or time is running out for the event.

A brand new audio feature has been added which can simulate the driver wearing ear protection or the effect of a helmet, adding to the immersion on-track. The Results page has received an overhaul for improved usability, including a fully featured “Find Past Results” button, which provides a bevy of selectable fields and filters to help you find exactly the sessions you want to see.

The New Damage Model has been put into practice on all five brand-new car models, and it has also been enabled for seven existing car models. Our artificial intelligence trainers have given the green flag for all five brand new car models, and for three existing car models, as well as all seven non-dirt new race track configs, and eleven existing race track configs. We have also added brand new top-notch vehicle setups for nearly every car in the service. Welcome to iRacing 2023 Season 4!

2023 Season 4 build Changelog:

iRACING UI:

Launching

• A “Couldn’t Connect” message will now be displayed at the Splash Screen if a user fails to reach the application or it was not reachable, instead of getting stuck on the Splash Screen.

Create a Race

• The maximum number of different car models selectable for a Hosted Session has been increased to 12!

Results & Stats

• The Results page has received an overhaul for improved usability.
• – – The Results page now includes a fully featured “Find Past Results” button, which opens a modal window with several selectable fields and filters to help you find exactly the sessions you want to see.
• – – – – For Official Racing, you can search and filter by participant type (Yourself, Friends, Follows, or Driver search), Date Ranges, specific Season(s) or Week(s), License Type, and Session Type (Race, Practice, Qualifying, Time Trial).
• – – – – For Hosted Racing, you can search and filter by Participant Name, Session Name, Host Name, or Team Name, Date Range, License Type, Car, Track, and config.
• – – – – Oh, and you can still search by valid Subsession ID if you want pinpoint precision.
• – – The Results page now includes two tabs, one for Official Racing and one for Hosted Racing to help divide the displayed results.

Paint Shop

• New sponsors have been added to the Paint Shop!
• – – ImSim
• – – Sim-Motion

SIMULATION:

Payments

• Effective September 5, 2023, in order to simplify and streamline payment options, PaymentWall is no longer a payment option for iRacing.
• – – For more information on our payment options that are available, please visit https://www.iracing.com/resources/accepted-payment-methods/

Updater

• Fixed an issue that could occur with the installation of the EasyAntiCheat (EAC) cheat prevention software if another game on the user’s system already had installed a version of the EAC software.

Official Series Schedule

• The schedule PDF now notes whether penalties or disqualification for too many incidents is in effect for the series, and the incident count thresholds.

Optimization

• The entire memory allocation system for iRacing has been analyzed and optimized, for improved loading times, and faster processing speeds.
• The worker processing thread pool allocation algorithms for all types of hardware have been improved, especially those of Enki worker threads.
• – – This replaces some temporary fixes that were aimed exclusively at hybrid CPUs.
• Improvements have been made to the methods by which the iRacing Deferred Rendering Lists are generated and sorted, yielding some modest CPU render time improvements.
• The memory footprint requirements for audio files has been reduced by over 65% while maintaining audio fidelity.
• Track reference lines for each car class within a Session are now loaded synchronously instead of sequentially. This improves track loading times for multiclass Sessions by a factor based on the number of car classes in use.

Loading

• Fixed a Simulator crash that could occur during the loading transition from an Open Practice to a Race Session.

Cars

• The methodology for processing anti-lock braking systems in the Simulation has been updated.

Tires

• Rolling drag has been rebalanced for off-track surfaces.
• – – This change should provide a much more realistic experience for grip and momentum when driving on grass, sand, gravel, grass-crete, and other off-track surfaces.

Race Control

• Several penalties have been changed from Stop-and-Go penalties to Drive-Through penalties.
• – – Minor Pit Exit Checkpoint failure penalties are now drive-through penalties.
• – – Pass Inside penalties are now drive-through penalties.
• – – The Jump Start rule for standing starts has been updated to begin as a drive-through penalty for a minor offense, but can be upgraded to a stop-and-hold penalty for a major offense.

Dirt Racing

• An expansive round of fine-tuning has been completed for Dirt Racing as a follow-up to the 2023 Season 3 Dirt Refresh project. These changes include:
• – – The variability for the starting dirt track state has been increased. This includes variance in dirt heights, density, and water content.
• – – The dirt track surface wear rate has increased slightly.
• – – Improved the tracking and recalculating of the dynamic track based around dirt that is thrown around the track from tires. This should slightly increase the wetness of areas as more dirt is added.
• – – Dirt coloring has been updated slightly based on water content.
• World of Outlaws 2023 contingency decal packages have been updated for the associated vehicles.

AI Racing

• AI Drivers have earned their licenses to pilot the following new vehicles:
• – – Acura ARX-06 GTP
• – – ARCA Menards Chevy / Gen 4 Cup – (Gen 4 Cup)
• – – Audi 90 GTO
• – – Ferrari 296 GT3
• – – NASCAR Classic Pontiac Grand Prix – 1987
• – – Nissan GTP ZXT
• – – Porsche 963 GTP
• – – Super Formula SF23
• AI Drivers have mastered the following new track configurations:
• – – Circuit de Lédenon
• – – Circuit Zandvoort – (Grand Prix, Grand Prix w/ Chicane, Nationaal, & Oostelijk)
• – – Kern County Raceway Park – (Asphalt Track, & Legends)
• – – The Milwaukee Mile
• – – Nürburgring Grand-Prix-Strecke – (Grand Prix w/out Arena, & Kurzanbindung w/out Arena, & Sprintstrecke)
• – – Road Atlanta – (Club & Short)
• – – [Legacy] Silverstone Circuit – 2008 – ALL FIVE Configs! (Grand Prix, Historical Grand Prix, International, National, & Southern)
• AI Drivers have improved their racing skills with the following content:
• – – BMW M Hybrid V8
• – – Cadillac V-Series.R GTP
• – – Lotus 79
• – – Mercedes-AMG GT3 Evo 2020
• – – Brands Hatch Circuit
• AI Drivers were able to pursue self-led learning for their Summer 2023 course catalog. Some courses and materials they chose to complete included:
• – – Adversarial Racing Networks in Competitive Environments
• – – Virtual Pit Crew Manager ‘23
• – – [PSY-303] The Psychology of Machine Behavior Under Pressure
• – – How To Mimic Human Racing Intuition through Neuromorphic Adoption
• – – Circuit Intelligence – AI Strategies for Every Turn
• – – Forecasting for Improved Performance with Lap Time Prediction Models
• – – Sensors & Sensibility by Jane Automaton
• – – AI Racecraft 101: Navigating Complex Racing Scenarios and Cones
• Fixed an issue that could occur in which an AI Driver recovering from an off-track event could cause a player driver to crash-to-desktop. The ultimate form of revenge!

Qualification Scrutiny

• The Qualification Scrutiny system has been updated to prevent drivers from driving into the pits during Qualifying to gain an unfair advantage.
• The Qualification Scrutiny officials are now able to detect attempts to adjust qualifying time by traveling in reverse in the pit lane.

Spotter

• A variety of brand new spotter messages have been added to the default iRacing spotter functionality! These include the following:
• – – INCIDENT OR OFF-TRACK: Your spotter will tell you when an incident has occurred nearby, or a car has gone off-track nearby.
• – – – – These new spotter calls only trigger for asphalt Road racing.
• – – – – These new spotter calls only trigger if the offending car is at a delta between 0 and 5 seconds ahead of you, or is within 3 seconds behind you, or is the race leader for your class.
• – – – – Only 2x or greater Incidents are reported, and if multiple issues occur at nearly the same time, these new spotter calls only inform you of the largest offense.
• – – – – Only one of these messages can trigger every 10 seconds.
• – – – – These spotter calls do not trigger if you are in the pits.
• – – DAMAGE AND REPAIRS: Your spotter will tell you about the type of damage you have sustained and how your team will be able to address it.
• – – – – While towing, your spotter will share information about Optional and Required Repair times.
• – – – – Your spotter will also inform you about predicted remaining damage (if any) after repairs are complete.
• – – – – While repairs are ongoing, your spotter will inform you when you have 30 seconds of repair time remaining.
• – – – – If you received race-ending damage that cannot be repaired, your spotter will also unfortunately inform you of this.
• – – – – You can request your crew chief tell you your current damage level by using a new Spotter Damage Report keybind.
• – – RACE ENDING SOON: Your spotter will tell you when there is either 5 laps or 10 minutes remaining in the Session, whichever comes first.
• – – – – This call does not trigger if the event is less than 20 minutes or 10 laps in length.
• – – STRENGTH OF FIELD: At the start of an event, your spotter will provide you with insight based on the calculated strength of field for your car class.
• A variety of new entries have been added to the “app.ini” file to control if some of the new Spotter messages will play for you, and/or certain parameters such as intervals and decimal accuracy. 
• – – The default state for all new spotter calls is “ON”. You will need to launch the Simulator once after updating before these entries will appear for you and may be customized.

Spotter – Foreign Language Packs

• The Italian Marco Arcidiacono spotter pack has been updated.
• – – Grazie mille, Marco!
• The Italian Renzo A Olivieri Spotter pack has been updated.
• – – Grazie mille, Renzo!
• The Spanish Ari Cejas Spotter pack has been updated.
• – – Additionally, the feminine form of this pack has been removed, and it has been made gender neutral.
• – – Muchas gracias, Ari!

Pit Stop

• Fixed an issue where the Fuel Fill checkbox did not respect the “autoResetPitBox” value set in the “app.ini” file.

Auto Fuel System

• Fixed an issue where the Auto Fuel System could sometimes fail to calculate the correct fuel needed to finish the race in situations where the player is multiple laps down and would not be able to finish the full race lap count.

New Damage Model

• The New Damage Model has been enabled for 13 new vehicle models!
• – – Acura ARX-06 GTP
• – – Dirt UMP Modified
• – – Ferrari 296 GT3
• – – Ford Mustang FR500S
• – – Modified – SK / NASCAR Whelen Tour Modified (Modified – SK, & NASCAR Whelen Tour Modified)
• – – NASCAR Classic Pontiac Grand Prix – 1987
• – – NASCAR Xfinity Class Cars (ALL THREE models)
• – – Porsche 963 GTP
• – – Super Formula SF23
• For Ghost Cars, fixed an issue where their ghost tires could take ghost damage, which could make them extra ghostly and appear to fall through the earth a short ways before resetting above the ground. Spooky.

Graphics

• When Graphics Auto-Config is run, an additional hardware check has been added for memory size and cores. If our check detects your system is below our minimum recommended system specs, a warning notification will appear to let you know you may have difficulty running the Simulator.
• – – You can find our current minimum system spec requirements and our recommended system specs here: https://www.iracing.com/membership/system-requirements/
• Improved the initialization process for devices using OpenXR.
• Improved the appearance of lit transparent particles.
• Fixed some issues with inconsistent track surface decal rendering.
• Fixed an issue with the rendering of metals with HDR, where they were appearing too dark.
• Fixed a resolution issue with heat haze rendering.
• Fixed an issue where disabling Triple Projection caused graphical artifacts.
• – – This issue was impacting any post-processing effect that utilized the velocity texture, such as SMAA or motion blur.
• Fixed an issue with stutters seen when running Varjo software alongside a hybrid CPU or a processor with more than 16 logical processors.
• Fixed an issue where some particles could appear to have an incorrect brightness at tracks where stadium lights were in use.
• Some legacy DirectX 10 shader code has been removed for improved SpeedTree performance.

Visual Effects

• Fixed an issue where distortion particles were only appearing in one eye in VR.

3D Foliage System

• Mother Nature has arrived at three more tracks:
• – – Circuit de Lédenon
• – – Circuit Zandvoort
• – – Sebring International Raceway
• – – These environments will now be populated with a variety of grasses, shrubs, flowers, and other low-lying plants native to their area of the world.
• – – Remember, 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.
• Some generation parameters have been adjusted to reduce the likelihood of vegetation spilling over the edges of the terrain onto track surfaces.
• Color scaling and foliage blending have been implemented.
• Improved some foliage rendering processes for slight GPU gains.

Audio

• A new Audio Option, Ear Protection and Helmet Effects, have been added to iRacing!
• – – These new settings apply an audio filter to the Simulation which mirrors the effect of various forms of ear protection often found at the track. Each applies a different audio algorithm to all sound being played in the world for a more authentic experience.
• – – These settings are found in the Sound Options page, and are named “Ear Protection / Helmet Effect”. Selectable effects include:
• – – – – Ear Plugs
• – – – – Earmuffs
• – – – – Open-Face Helmet
• – – – – Full Helmet
• – – This feature is only available if XAudio2 is in use.
• – – These audio effects only occur when the camera is set to be in the driver’s perspective.
• Removed “None” as a device selection default for Spotter and Voice Chat. These now simply use the system default which functions normally.
• Fixed some resource leaks where switching to and from audio systems were not cleaning up after themselves, and could leave sounds hanging in the aether.
• The XAudio2 library has been updated from 2.7 to 2.9.

Force Feedback

• A new “Intensity” slider has been added to the Driving Controls options screen. This slider replaces the “autoForceFactor” setting value, previously found in the “app.ini” file.
• – – This controls how the Force Feedback auto button (found on the F9 black box) behaves. With the slider set to 100% it behaves as it did last season, giving you the maximum force that your wheel can produce. With the intensity slider set to 0% it will attempt to both lower the forces as well as give you some variation from car to car so cars with higher Force Feedback will feel heavier.
• Fixed an issue that could cause the Force Feedback system to send an invalid signal, if the wheel no longer reports its position accurately.

Pace Car

• The Sedan Pace Car texture color has been improved.

Sporting Code

• Updates have been made to the Official Sporting Code for the 2023 Season 4 Release. These include the following:
• – – Section 5.4. Divisions, has been completely rewritten for improved clarity.
• – – For section 9.2.2.,  more clearly defined where the Official Protest Form may be found.
• – – For section 13.1.3., updated the language for gridding cars that did not post a Qualifying time during a Multiclass Race.
• – – New Glossary entries have been added for: 3D Foliage System, Active Reset, Auto Fuel System, Force Feedback, and Telemetry.
• – – Other minor fixes.
• You can always find the latest version of the Official iRacing Sporting Code here:
• – – https://www.iracing.com/iracing-official-sporting-code/

CARS:

<Car Class> GT3 Cars

• A variety of improvements for the New Damage Model used by these cars have been made. Generally, these changes aim to standardize damage across all cars in the class.
• – – Wheel damage is now always addressed before aerodynamic damage.
• – – All bendable and breakable car elements are now either fully repairable or replaceable via pit stop when they are damaged or broken.
• – – Meatball flags will no longer be thrown solely for aerodynamic damage. Only critical damage to wheels, the engine, or fluid leaks will be cause for a meatball.
• – – Repair times for all panels and hinges have also been reduced.
• – – Aerodynamic damage penalties have been rebalanced. Cars will see less top speed loss with damage but greater downforce loss.
• Fuel economy has been balanced across the class for Season 4 release.
• A new series of numberboards have been implemented that use the same number placement as IMSA to simplify creating custom paint schemes for customers.

<Car Class> GTE Cars

• iRacing setups have been updated.

<Car Class> GTP Cars

• The aerodynamic model has been updated.
• A variety of improvements for the New Damage Model used by these cars have been made. Generally, these changes aim to standardize damage across all cars in the class.
• – – Wheel damage is now always addressed before aerodynamic damage.
• – – All bendable and breakable car elements are now either fully repairable or replaceable via pit stop when they are damaged or broken.
• – – Meatball flags will no longer be thrown solely for aerodynamic damage. Only critical damage to wheels, the engine, or fluid leaks will be cause for a meatball.
• – – Repair times for all panels and hinges have also been reduced.
• – – Aerodynamic damage penalties have been rebalanced. Cars will see less top speed loss with damage but greater downforce loss.
• The dimensions and FOV for the video camera portal have been updated.
• iRacing setups have been updated.

<Car Class> NASCAR Cup Series Next Gen Cars

• Vehicle specs have been added to the Car Details page.
• iRacing setups have been updated.

<Car Class> NASCAR Legends Cars

• The cars and class formerly known as NASCAR 1987 cars have been unified and renamed: NASCAR Legends.
• For the New Damage Model the break limits for the nose, fenders, front wheels, and body panels have all been reduced.
• Tire properties have been updated to prevent excessive bouncing when wheels are detached but remain tethered.
• iRacing setups have been updated.

<Car Class> NASCAR Truck Series Trucks

• iRacing setups have been updated.

<Car Class> NASCAR Xfinity Cars

• The New Damage Model is now enabled for all three cars in this class!
• iRacing setups have been updated.

<Car Class> Stock Car Pro Series Cars

• iRacing setups have been updated.

<Car Class> Touring Cars

• Official TCR decals have been added to these cars.

Acura ARX-06 GTP

• NEW CAR!
• – – The Acura ARX-06 GTP is now available for purchase and racing!
• – – Built to the IMSA WeatherTech SportsCar Championship’s new GTP regulations, the Acura ARX-06 debuted at the 2023 24 Hours of Daytona as a replacement for the ARX-05 that had run for five years under the previous DPi rule set. Acura continued its previous relationship with constructor Oreca to build the new car, which would debut in the hands of Meyer Shank Racing with Curb-Agajanian and Wayne Taylor Racing with Andretti Autosport; the teams would come roaring out of the gate by finishing 1-2 at Daytona. The ARX-06 features a 2.4-liter, twin-turbocharged V6 engine, smaller than its predecessor but packing a powerful punch at over 670 horsepower. As with other GTP cars, the car weighs 1,030 kg and features a spec 50kW hybrid system.
• – – Claim the keys for your very own Acura ARX-06 GTP by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=170
• AI Racing is available for this car!
• The New Damage Model is enabled for this car!

ARCA Menards Chevy / Gen 4 Cup

• (Gen 4 Cup) – AI Racing is now available for this car!
• (BOTH) – iRacing setups have been updated.

Audi 90 GTO

• AI Racing is now available for this car!

BMW M Hybrid V8

• Minimum weight has been increased by 5 kg for improved 2023 Season 4 vehicle class balance.
• Some dashboard artwork has been updated.
• Driver animations have been updated.

Cadillac V-Series.R GTP

• Fuel delta display has been updated.
• Telemetry box lights have been connected.
• Driver shifting animations have been updated.
• Fixed a minor issue with exterior cockpit lighting.

Dallara F3

• For the New Damage Model, break limits for most body panels have been reduced.
• iRacing setups have been updated.

Dallara iR-01

• iRacing setups have been added.

Dallara IR18

• iRacing setups have been updated.

Dallara P217

• A variety of improvements for the New Damage Model have been made.
• – – Wheel damage is now always addressed before aerodynamic damage.
• – – All bendable and breakable car elements are now either fully repairable or replaceable via pit stop when they are damaged or broken.
• – – Meatball flags will no longer be thrown solely for aerodynamic damage. Only critical damage to wheels, the engine, or fluid leaks will be cause for a meatball.
• – – Repair times for all panels and hinges have also been reduced.
• – – Aerodynamic damage penalties have been rebalanced. Cars will see less top speed loss with damage but greater downforce loss.

Dirt Late Model

• (ALL) – Improved the rotation directional accuracy of opponent cars’ tires.
• (ALL) – iRacing setups have been updated.

Dirt Midget

• iRacing setups have been updated.

Dirt Modified

• (ALL) – iRacing setups have been updated.

Dirt Sprint Car

• (ALL) – Fixed an issue where the roof wing on opponents’ cars could disappear or not animate correctly.
• (ALL) – iRacing setups have been updated.

Dirt Sprint Car Non-Winged

• (ALL) – iRacing setups have been updated.

Dirt Street Stock

• iRacing setups have been updated.

Dirt UMP Modified

• The New Damage Model is now enabled for this car!
• iRacing setups have been updated.

Ferrari 296 GT3

• NEW CAR!
• The Ferrari 296 GT3 is now available for purchase and racing!
• – – Ferrari’s latest foray into GT3 racing, the 296 GT3 made its debut in the IMSA WeatherTech SportsCar Championship and other major global championships in time for the 2023 season. It succeeds the 488 GT3 EVO that made its debut in 2020, and it was designed to build on that car’s successes with easier setup modifications for the crew and significantly more downforce than its predecessor. Powered by a V6 engine just like its road-going counterpart, the 296 GT3 is capable of producing 600 horsepower from its 2.9-liter powerplant. Four cars took to the track across IMSA’s GTD and GTD Pro classes in its debut at the 24 Hours of Daytona, and the car took its first win in a twice-around-the-clock endurance race a few short months later at the Nürburgring.
• – – Claim the keys for your very own Ferrari 296 GT3 by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=173
• Customers who purchased the Ferrari 488 GT3 Evo 2020 within the past 30 days will receive 100% of the purchase price in iRacing credits. Anyone who purchased the Ferrari 488 GT3 Evo 2020 between 31 and 180 days ago will receive 50% of the purchase price in iRacing credits.
• AI Racing is available for this car!
• The New Damage Model is enabled for this car!

Ferrari 488 GTE

• Fixed an issue where the brake bias knob was rotating in the wrong direction.

FIA F4

• iRacing setups have been updated.

Ford Mustang FR500S

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

Formula Renault 3.5

• iRacing setups have been updated.

Formula Vee

• Steering wheel nuts have been tightened.

Indy Pro 2000 PM-18

• iRacing setups have been updated.

Late Model Stock

• iRacing setups have been updated.

Legends Ford ’34 Coupe

• (Legends, Dirt, & Rookie) – A variety of vehicle textures have been updated.
• (Legends, Dirt, & Rookie) – iRacing setups have been updated.

Ligier JS P320

• A variety of improvements for the New Damage Model have been made.
• – – Wheel damage is now always addressed before aerodynamic damage.
• – – All bendable and breakable car elements are now either fully repairable or replaceable via pit stop when they are damaged or broken.
• – – Meatball flags will no longer be thrown solely for aerodynamic damage. Only critical damage to wheels, the engine, or fluid leaks will be cause for a meatball.
• – – Repair times for all panels and hinges have also been reduced.
• – – Aerodynamic damage penalties have been rebalanced. Cars will see less top speed loss with damage but greater downforce loss.
• Mirror portal priority has been adjusted so that the driver’s side mirror is most important for rendering.
• Fixed an audio issue with gear shift sounds when listening from outside the cockpit.
• Fixed an issue where external hardware shift lights were not matching this car correctly.
• iRacing setups have been updated.

Lotus 49

• iRacing setups have been updated.

Lotus 79

• Tire parameters have been adjusted.
• iRacing setups have been updated.

Lucas Oil Off Road Pro 2 Lite

• Mud flaps are now visible in the Paint Shop.
• The dirt track wear rate applied by these tires has been updated.
• Water and oil cooling have been improved.

Lucas Oil Off Road Pro Trucks

• (ALL) – Mud flaps are now visible in the Paint Shop.
• (ALL) – The dirt track wear rate applied by these tires has been updated.
• (Pro 2 Truck) – Water and oil cooling have been improved.

Mercedes-AMG GT3 2020

• 2023 Season 4 vehicle class balance updates include: Mass and downforce have been increased, engine torque and drag have been decreased, and fuel economy has been fine tuned.
• Aerodynamic parameters, rear suspension geometry, and tire temperatures have been fine-tuned.
• Engine braking has been reduced.
• Telemetry box lights have been added.
• iRacing setups have been updated.

Mercedes-AMG W13 E Performance

• iRacing setups have been updated.

Modified – SK / NASCAR Whelen Tour Modified

• (BOTH) – The New Damage Model is now enabled for these cars!
• (BOTH) – iRacing setups have been updated.

NASCAR Legends Pontiac Grand Prix – 1987

• NEW CAR!
• – – The NASCAR Classic Pontiac Grand Prix – 1987 is now available for purchase and racing!
• – – Campaigned by Petty Enterprises, Blue Max Racing, RahMoc Enterprises, and McDuffie Racing, the Pontiac Grand Prix had a small but mighty driver lineup for the 1987 NASCAR Cup Series season. Rusty Wallace led the drivers at fifth place in the standings with two wins and nine top-fives, while Richard Petty scored the final top-10 points finish of his career in eighth with nine top-fives of his own.
• – – Claim the keys for your very own NASCAR Classic Pontiac Grand Prix – 1987 by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=175
• AI Racing is available for this car!
• The New Damage Model is enabled for this car!

NASCAR Truck Chevrolet Silverado

• Driver animations have been updated to use a new blending system for smoother transitions between animations.

NASCAR Xfinity Ford Mustang

• The “MUSTANG” lettering on the front of the car has been removed to better match the real world version of the car.

Nissan GTP ZXT

• AI Racing is now available for this car!

Porsche 911 GT3 R (992)

• Fixed an issue where headlight flares were only appearing on one side of the car when the car was damaged.
• Some telemetry box lights have been added.

Porsche 963 GTP

• NEW CAR!
• – – The Porsche 963 GTP is now available for purchase and racing!
• – – After a five-year hiatus from top-level prototype racing, Porsche returned to the discipline in 2023 with the all-new 963 for the IMSA WeatherTech SportsCar Championship’s GTP class. Partnering with Multimatic to construct the chassis, the 963 made its racing debut at the 2023 24 Hours of Daytona with Porsche Penske Motorsport, and more teams have begun to adopt the car around the world as the season has continued. Penske’s Mathieu Jaminet and Nick Tandy gave the car its first win at Long Beach in its third start of the IMSA season. Powered by Porsche’s 4.6 liter, twin-turbocharged V8, the 9RD engine that powers the 963 makes over 670 horsepower. As with other GTP cars, the car weighs 1,030 kg and features a spec 50kW hybrid system.
• – – Claim the keys for your very own Porsche 963 GTP by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=174
• AI Racing is available for this car!
• The New Damage Model is enabled for this car!

Radical SR10

• iRacing setups have been updated.

Ray FF1600

• Onboard engine sounds have been improved.
• iRacing setups have been updated.

Silver Crown

• iRacing setups have been updated.

Skip Barber Formula 2000

• Onboard engine sounds have been improved.

Street Stock

• iRacing setups have been updated.

Super Formula SF23

• NEW CAR!
• – – The Super Formula SF23 is now available for purchase and racing!
• This car includes an Overtake system, which is only available during Race Sessions.
• – – Debuting in the 2023 Super Formula season, the SF23 is the third open-wheel car developed by Italian manufacturer Dallara for Japan’s premier open-wheel racing series. From a visual standpoint, the SF23 evolves from its predecessor by introducing new aerodynamics designed to produce more overtaking. From a sustainability one, the new design reduces carbon dioxide emissions in raw materials and manufacturing by 75% thanks to new, natural materials, while even the Yokohama tires used on the car use significantly more renewable raw materials while maintaining the performance of previous tires. Super Formula cars are powered by high-performance, turbocharged 2.0-liter I4 engines, each capable of producing more than 540 horsepower. Each is equipped with an Overtake System (OTS) that allows for up to 200 seconds of additional fuel burn in each race.
• – – Claim the keys for your very own Super Formula SF23 by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/CarDetail.do?carid=171
• The New Damage Model is enabled for this vehicle!
• AI Racing is available for this car!

Super Late Model

• iRacing setups have been updated.

USF 2000

• iRacing setups have been updated.

TRACKS:

Autodromo Internazionale Enzo e Dino Ferrari

• Graphics cubemap used at this track has been improved.

Circuit de Lédenon

• NEW TRACK!
• – – A new Road racing track, Circuit de Lédenon, is now available for purchase and racing!
• – – Breaking ground in 1970 and opening three years later, Circuit de Lédenon is one of France’s most unique and challenging race circuits. Measuring in at 1.958 miles (3.151 km), the track manages to pack 13 varied corners and plenty of altitude changes into a relatively small space. It also differs from most other major tracks in France in that it runs counterclockwise. The track has played host to French Formula 4 regularly since 2011 and also hosts national GT races. A lap at Lédenon begins with the long, high-speed front stretch before entering the Triple Gauche, three left-hand corners that lead into the Virage du Pont, a tighter right-hander. After the slow La Carrierrasse left-hander, drivers accelerate through La Courmelle and downhill into the Virage du Camion, before Le Cavalet turns them hard right and uphill once again. After getting through La Servie, drivers accelerate through one more straightaway broken up by smaller corners before La Cuvette sends them back onto the front stretch.
• – – Add your name to the deed of Circuit de Lédenon by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/TrackDetail.do?trackid=489
• AI Racing is available at this track!
• The 3D Foliage System is active at this track!

Circuit de Spa-Francorchamps

• Pit wall collision parameters have been adjusted to eliminate the issue where cars could snag against the wall.

Circuit Zandvoort

• NEW SCAN AND FULLY UPDATED TRACK!
• – – A 2023 scan data and fully rebuilt version of the Road racing track, Circuit Zandvoort, is now available for purchase and racing!
• – – This 2023 version includes four track configurations: Grand Prix, Grand Prix w/ Chicane, Nationaal, and Oostelijk.
• – – Circuit Zandvoort ranks among the most historic and challenging road courses in all of Europe. Home of the Dutch Grand Prix from 1952 to 1985, and again since 2021, Zandvoort features a testing blend of straightaways, tight, medium and high-speed turns that run over and around the sand dunes just a few hundred yards from the North Sea. Designed by John Hugenholtz, the Zandvoort circuit opened in 1948. The 2.6 mile road course, located west of Amsterdam, boasted a couple of signature corners, including the fast and undulating Scheivlak, and Tarzanbocht a slightly-banked 180 degree turn at the end of the long pit straightaway. Coupled with the heavy braking at the end of the straightaway, the modest banking encouraged overtaking maneuvers, the most famous of which resulted in Mario Andretti and James Hunt banging wheels during the 1977 Dutch Grand Prix. Over the years, Zandvoort witnessed many classic races. In 1959 Jo Bonnier scored B.R.M’s first Formula One victory there. Eight years later the legendary Ford Cosworth DFV earned a famous win in its competition debut in the hands of Jimmy Clark, one of four Dutch Grand Prix wins for the Scotsman. The rain-swept ’71 Dutch Grand Prix featured a showdown between the two great rainmeisters of the day – Jacky Ickx and Pedro Rodriguez – that was ultimately resolved in the Belgian’s favor. A partial list of Ickx’ fellow Dutch GP winners includes Alberto Ascari, Juan Manuel Fangio, Stirling Moss, Jack Brabham, Jimmy Clark, James Hunt, Alan Prost and Niki Lauda. Following the 1985 Dutch Grand Prix the circuit closed owing to financial problems. It reopened four years later as Circuit Park Zandvoort and featured an abbreviated (1.6 mile) version of the original track for use in club racing. In 1995, however, the Dutch government gave the CPZ the go-ahead to develop a new international level circuit. The resulting facility opened in 2001, featuring a modern pit complex as well as the old Tarzanbocht and the new Arie Luyendyk-bocht, which honors the two-time Indianapolis 500 winner who cut his racing teeth at Zandvoort. The contemporary Circuit Zandvoort boasts four different configurations ranging in length from 2.64 to .87 miles. It was reconfigured and brought up to modern standards in anticipation of hosting the Dutch Grand Prix once again in 2020, though the COVID-19 pandemic postponed that for a year. In addition to a full slate of amateur and club races, Circuit Zandvoort annually hosts rounds of national and international sports car races. The iRacing package of Circuit Zandvoort includes both the current version of the track, reflecting its FIA Grade 1 status, and iRacing’s original scan, which features five layouts.
• – – Customers who already own the original track version, Circuit Park Zandvoort, will automatically be granted ownership of this 2023 rescan and rebuild version of the legendary Dutch track.
• – – Customers who purchase Circuit Park Zandvoort will automatically be granted ownership of this version of the track.
• – – Add your name to the deed of Circuit Zandvoort by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/TrackDetail.do?trackid=485
• AI Racing is available at all four track configurations!
• The 3D Foliage System is active at this track!

Donington Park Racing Circuit

• Fixed an issue where some crowds could be floating in the air when lower object detail levels were selected for use in Graphics settings.

Hungaroring Circuit

• Fixed a surface type error in which a section of the Turn 7 exit curbing was considered racing dirt instead of rumble strip.

Kentucky Speedway

• Fixed an issue where the grandstands would disappear at low graphics settings, leaving a gaping hole in the earth.

Kern County Raceway Park

• NEW TRACK!
• – – A new track with both Asphalt and Dirt Oval racing, Kern County Raceway Park, is now available for purchase and racing!
• – – This track includes four track configurations: Asphalt Track, Legends, Dirt Track, and Dirt Mini Oval.
• – – One of California’s most unique racing playgrounds, Kern County Raceway Park opened in 2013. The track was built about 30 miles west of the former Mesa Marin Raceway, another half-mile paved oval that held races from 1977 through 2005, including nine NASCAR Craftsman Truck Series events. Alongside the paved oval, which is a regular host of the ARCA Menards Series West and other stock car events, Kern County also has a third-mile, asymmetrical clay oval for sprint car and midget racing. Kern County’s paved oval features progressive banking in the corners, starting at 12 degrees at the bottom of the track and rising to 14 degrees at the top, as well as eight degrees of banking on the straightaways. Turns 1 and 2 are raised slightly higher than the straightaways and Turns 3 and 4. The corners are also different on Kern County’s dirt oval, with Turns 1 and 2 of that track tighter than Turns 3 and 4.
• – – Add your name to the deed of Kern County Raceway Park by purchasing it from the iRacing Store here: https://members.iracing.com/membersite/member/TrackDetail.do?trackid=493
• AI Racing is available at the Asphalt Track and Legends track configurations!

Limaland Motorsports Park

• Patched a seam in the terrain at Turn 2.

The Milwaukee Mile

• AI Drivers have passed their racing qualifications test at this track, and may now race here!

MotorLand Aragón

• Pit Road speed has been reduced to 37 mph.
• Ambient track sounds have been adjusted.
• (National, Motorcycle Grand Prix) – Static camera names have been updated.

Nürburgring Grand-Prix-Strecke

• AI Drivers have passed some of their racing qualifications tests at this track and may now race at the following additional track configs: Nürburgring Grand-Prix-Strecke – Grand Prix w/out Arena, Kurzanbindung w/out Arena, and Sprintstrecke.

Road Atlanta

• AI Drivers have passed the remaining racing qualification tests at this track, and may now race at all track configs here, including Club and Short.

Sebring International Raceway

• Mother Nature has arrived at this track, and the environment has been seeded with the 3D foliage system! A variety of grasses, shrubs, flowers, and other low-lying plants will now populate the world at this track.
• – – Remember, 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.
• Updated the display distance for tirewalls to prevent them from visually popping in the distance.

Tsukuba Circuit

• Graphics cubemap used at this track has been improved.

Volusia Speedway Park

• Some advertisements have been updated.

[Legacy] Silverstone Circuit – 2008

• AI Drivers have passed all of their racing qualification tests at this track and may now race at all track configs for this track: Grand Prix, Historical Grand Prix, International, National, and Southern.

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Official Webpage – www.iRacing.com

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