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Project Motor Racing
2.0.0.3

Project Motor Racing 2.0.0.3 update adds PC MDI rendering, relative timings, and class handling revisions

Patch 2.0.0.3 adds PC-only Multi-Draw Indirect rendering, expands the Digidash with relative timings, extends throttle-response updates across more classes, reworks the Porsche 911 Carrera Cup (964), and includes online, AI, track, UI, and anti-cheat improvements.

cars

Patch 2.0.0.3 is live for Project Motor Racing, with changes centered on performance, stability, handling, UI usability, and online administration. The official notes are here in the update announcement.

What changed

Cars & physics

  • PC gets Multi-Draw Indirect (MDI), moving more rendering work to the GPU to reduce CPU overhead and improve scaling in complex scenes.
  • The updated throttle response model now covers more classes.
  • The Porsche 911 Carrera Cup (964) gets reworked handling and an improved tyre model.
  • Turbo modelling/performance was improved for Group C, GT, GT1, and LMP cars.
  • Tyre model updates were applied to Group C, GT, GT1, and LMP; GT3 also gets improved cold-falloff grip.
  • AI behaviour and, for several classes, AI physics were updated across 964 Trophy, 992 Trophy, GT, GT3, GT4, GTE, LMDh, MX-5 Trophy, and N-GT.
  • Vehicle-specific fixes include setups and balance changes for the Acura ARX-06, Aston Martin Vantage GT3s, BMW M4 GT3, Lamborghini Huracán GT3 Evo2, and modelling fixes for the BMW 320 Turbo Group 5.

Tracks & environment

  • Trackside vegetation was further optimized for performance and reduced shadow popping.
  • Spa and San Marino received improved track-limits penalty detection.
  • Nürburgring GP pit-limiter exit was fixed; Nürburgring layouts also got mini-map improvements.
  • Nürburgring 24H adds a pit-entry shortcut.
  • Zolder, Daytona, Mount Panorama, and Sebring received optimization or physics-related environment updates.
  • Takimiya’s start/finish line placement was adjusted.

Gameplay & UI

  • Digidash now includes a relative timings leaderboard.
  • Delta timings were improved for practice and qualifying.
  • Radar accuracy was improved.
  • Fixes landed for setup save/load in pits, car thumbnails, Race Engineer damage reporting, opponent numbering, and ModHub installed/download states.

AI, online & anti-cheat

  • AI duplicated names were removed, tyre wear resets correctly between sessions, Lime Rock Chicane racing lines were reworked, and long-run tyre wear behaviour was improved.
  • Online received further stability/performance work, a fix for some Ranked Online join failures, better custom-lobby navigation, and a new kick option for Custom Lobbies.
  • Anti-cheat now also covers Factory Driver Challenge, Endurance Hall, and the Ranked Online License Test.

We should rerun admin checks on track limits, pit procedures, and default setups for affected classes, then update lobby policies around the new kick control and expanded anti-cheat coverage.

From the changelog

Structured change list parsed from the official notes.

cars

  • Update 2.0.0.3 is now live for Project Motor Racing, bringing a wide range of improvements focused on performance, stability, and overall usability. Headlining this update is the introduction of Multi-Draw Indirect (MDI) on the PC platform, a significant rendering upgrade that improves how the engine handles large complex scenes. Alongside that comes further expansion of the throttle response model, a new relative timings function for the Digidash, and a reworked handling for the Porsche 911 Carrera Cup (964). [img src="{STEAM_CLAN_IMAGE}/45601812/90ad311fc9b3baa230545eac2e6d984f4f7d4725.jpg"] [h3] Relative Timings Leaderboard [/h3] Expanding on the existing Digidash tool, a new relative timings function has been added, giving players more detailed information race position and gaps to opponents. [h3] Implementation of MDI [/h3] Multi-Draw Indirect (MDI) is a major step forward in how the engine renders large, complex scenes. By moving draw call generation and visibility decisions onto the GPU, CPU overhead has been significantly reduced, allowing the renderer to scale more efficiently with scene complexity. This enables the game to handle far more objects on screen while improving stability and overall CPU performance. Alongside this, culling, batching, and render pass organisation have been refined to ensure only the work necessary for each frame is executed. The result is a more consistent frame rate, better use of modern hardware, and a stronger technical foundation for future multi-view features such as VR and triple-screen support. [img src="{STEAM_CLAN_IMAGE}/45601812/a6be26d5b3f261e6d651bfc4a87fdfa25092405e.jpg"] [h3] Expanding Anti-cheat System [/h3] First introduced in Update 2.0, the anti-cheat system has already been tested in Ranked Online. With Update 2.0.0.3, it has now been expanded into Factory Driver Challenge, Endurance Hall, and the Ranked Online License Test to help ensure fair and consistent leaderboard results. [h3] Throttle Response [/h3] Building on the foundation introduced in Update 2.0, and later expanded in Update 2.0.0.2, more cars now benefit from the updated throttle response model. You can learn more about how this system works in our blog: [url="https://store.steampowered.com/news/app/299970/view/517491686155224016"]Deep Dive: Throttle Response Model Continue reading for the full patch notes. [h3] Physics & Handling – Per Class [/h3] [*] The throttle response improvements introduced in previous updates have now been extended into more classes. [/*][*] Improved modelling and performance for cars equipped with a turbo. [/*][*] Below is a detailed list of changes made to physics and handling-related systems. [/*] [h3] 964 Trophy [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Reworked handling model. [/*][*] Improved tyre model. [/*] [h3] 992 Trophy [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*] [h3] Group C [/h3] [*] Improved modelling and performance for cars equipped with a turbo. [/*][*] Tyre model updated to latest iteration as seen in Update 2.0 [/*][*] Improved throttle response. [/*] [h3] GT [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*][*] Improved modelling and performance for cars equipped with a turbo. [/*][*] Tyre model updated to latest iteration as seen in Update 2.0. [/*][*] Improved throttle response. [/*] [h3] GT1 [/h3] [*] Improved modelling and performance for cars equipped with a turbo. [/*][*] Tyre model updated to latest iteration as seen in Update 2.0. [/*][*] Improved throttle response. [/*] [h3] GT3 [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*][*] Improved ‘cold falloff’ tyre grip as per player feedback. [/*][*] Improved throttle response. [/*] [h3] GT4 [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*][*] Improved throttle response. [/*] [h3] GTE [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*] [h3] LMDh [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*] [h3] LMP [/h3] [*] Improved modelling and performance for cars equipped with a turbo. [/*][*] Tyre model updated to latest iteration as seen in Update 2.0. [/*][*] Improved throttle response. [/*] [h3] MX-5 Trophy [/h3] [*] Upgraded AI opponents' behaviour on wet conditions. [/*][*] Improved throttle response. [/*] [h3] N-GT [/h3] [*] Upgraded AI opponents' behaviour for this class. [/*][*] Improved AI opponents’ physics for this class. [/*][*] Improved throttle response. [/*] [img src="{STEAM_CLAN_IMAGE}/45601812/8df6e3141b48b90878c632a429f0e97c1de6985d.jpg"] [h3] Physics & Handling – Per Vehicle [/h3] [*] Several changes have been made to individual vehicles that do not affect other cars in their respective classes. [/*][*] Those changes are detailed below. [/*] [h3] Acura ARX-06 [/h3] [*] Fixed a bug that would prevent changing ABS value. [/*][*] New default setup. [/*] [h3] Aston Martin Vantage GT3 (2022) [/h3] [*] Improved differential settings. [/*][*] New default setup. [/*] [h3] Aston Martin Vantage GT3 [/h3] [*] Improved differential settings. [/*][*] New default setup. [/*] [h3] BMW 320 Turbo Group 5 [/h3] [*] Improved modelling and performance. [/*] [h3] BMW M4 GT3 [/h3] [*] Improved weight balance. [/*][*] New default setup. [/*] [h3] Lamborghini Huracán GT3 Evo2 [/h3] [*] New default setup. [/*] [h3] Art – Vehicles [/h3] [*] Improved lighting on headlights for the player car. [/*][*] Several vehicles have received multiple visual improvements, along with minor fixes to visual effects. [/*][*] Below is a detailed list of changes made to vehicle art-related components. [/*] [h3] Acura ARX-06 [/h3] [*] Improved cockpit camera view to show correct bodywork details. [/*] [h3] BMW 320 Turbo Group 5 [/h3] [*] Improved setup menu details. [/*][*] Fixed a typo in the setup menu. [/*] [h3] Mercedes-Benz Sauber C9 [/h3] [*] Fixed an issue with the MoTeC system displaying speed units incorrectly. [/*] [h3] Nissan Datsun 280ZX Turbo [/h3] [*] Updated car name and description field to display correctly in the UI. [/*][*] Improved bonnet camera view. [/*] [h3] Nissan R390 GT1 [/h3] [*] Minor updates to flavour text in the description. [/*][*] Updated engine specs to display correctly in the UI. [/*] [h3] Nissan Skyline GTR (R34) [/h3] [*] Updated engine specs to display correctly in the UI. [/*] [h3] Peugeot 9X8 [/h3] [*] Updated the #95 livery. [/*] [h3] Toyota Supra JP2 [/h3] [*] Updated bodywork to reflect the correct model year from 2003. [/*] [img src="{STEAM_CLAN_IMAGE}/45601812/19eb8d6c441ff046dda9818383be53240331546b.jpg"] [h3] Art – Environment [/h3] [*] Further improvements made to trackside vegetation for better performance and reduced shadow popping. [/*] [h3] Circuit de Spa-Francorchamps [/h3] [*] Improved track limits penalty detection. [/*] [h3] Circuit Zolder [/h3] [*] Further optimisation for better performance. [/*] [h3] Daytona International Speedway. [/h3] [*] Minor art improvements for more consistent visuals. [/*][*] Further optimisation for improved performance. [/*] [h3] Mount Panorama Circuit [/h3] [*] Minor art improvements for more consistent visuals. [/*][*] Further optimisation for improved performance. [/*] [h3] Nürburgring [/h3] [*] Grand Prix Layout: fixed an issue where the pit limiter would not disengage when exiting the pits. [/*][*] Improved HUD mini-map. [/*] [h3] Nürburgring 24 Hours [/h3] [*] Added a shortcut to allow pit entry without needing to enter the Nordschleife. [/*][*] Improved HUD mini-map. [/*] [h3] San Marino [/h3] [*] Fixed visual bug on trackside barriers. [/*][*] Improved track limits penalty detection. [/*] [h3] Sebring International Raceway [/h3] [*] Optimised collision meshes for selected kerbs to improve physics behaviour. [/*] [h3] Takimiya International Circuit [/h3] [*] Adjusted start/finish line placement. [/*] [h3] Gameplay & UI [/h3] [*] Fixed an issue with the Race Engineer reporting vehicle damage when damage was disabled. [/*][*] Improved text placement to prevent overlapping UI elements. [/*][*] Further improvements made to the Radar System for greater accuracy. [/*][*] Fixed an issue where certain car thumbnails did not match the selected livery in the car selection screen. [/*][*] ModHub: installed items now display correctly in the Installed tab. [/*][*] ModHub: added a “download in progress” UI element for active downloads. [/*][*] Fixed an issue with loading and saving custom car setups while in the pits. [/*][*] Fixed an issue that showed incorrect opponent numbers in Race Weekend when the “Identical Vehicle” option was enabled. [/*][*] Improved delta timings for practice and qualifying sessions. [/*][*] Digidash: added relative timings leaderboard. [/*] [p align="start"][img src="{STEAM_CLAN_IMAGE}/45601812/c8d842745c6f1fb907a8da468a481435c3776273.jpg"] [h3] AI Opponents [/h3] [*] Removed duplicated names. [/*][*] Tyre wear now resets correctly when entering a new session. [/*][*] Lime Rock – Chicane: reworked racing lines. [/*][*] Improved AI opponent tyre wear behaviour, including more natural grip falloff over distance. [/*] [h3] Performance [/h3] [*] Introduced MDI (Multi-Draw Indirect) for improved performance and stability. [/*][*] This change currently affects PC only and will be expanded to consoles in a future patch. [/*][*] PC players should see significant performance gains as a result. [/*] [h3] Online [/h3] [*] Further stability and performance improvements. [/*][*] Fixed an issue that prevented some players from joining Ranked Online at times [/*][*] Added a kick option for Custom Lobbies. [/*][*] Improved navigation in the Custom Lobby menu. [/*][*] Expanded anti-cheat systems into Factory Driver Challenge, Endurance Hall, and Ranked Online License Test. [/*] [p align="start"] [p align="start"] Thank you for your support. We hope you continue to enjoy Project Motor Racing.

Official sources

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