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Project Motor Racing
1.6.0.1

Project Motor Racing 1.6.0.1 updates GT3 tyres, assists, and online fixes

Update 1.6.0.1 focuses on tyre and handling revisions, especially for GT3, alongside Force Feedback, multiplayer, AI, UI, and track fixes.

cars

We’ve reviewed the official 1.6.0.1 update notes. This patch is centered on stability and driving-feel work, with the biggest change being a revised GT3 tyre model that also affects existing custom setups.

What changed

Cars & handling

  • A more robust throttle response system was implemented.
  • Downshift Protection was revised with simplified logic and a percentage over-rev allowance.
  • Automatic gears and throttle blip assist issues were fixed for more stable downshifts.
  • Tyre pre-heating temperatures were lowered across all classes.
  • GT3: tyre model updated for more realistic slip and grip angles, improved limit behaviour, and more natural traction breakaway; TC and ABS logic were reworked; existing custom setups may need adjustment.
  • LMDh: TC was fully reworked, settings 2–10 now provide a more usable range, downshift protection was improved, and a neutral-shift engine stall issue was fixed.
  • GTO: TC settings were relaxed to allow more performance and driver influence.
  • Group 5 / Group C: TC slip angles were adjusted and clutch slip on downshifts was increased for better stability under deceleration.

Input & Force Feedback

  • Logitech TrueForce is now disabled by default on PC.
  • GT3 FFB strength was balanced for a more consistent baseline.
  • Wet-condition FFB was improved.
  • A setup-selection issue with mouse input and large setup lists was fixed.

Online, UI & telemetry

  • Opponent cars ghosting unexpectedly in online races was fixed.
  • A bug that could place players into an unintended lobby was fixed.
  • Incorrect constant data sent via UDP was fixed.
  • Player stats menu navigation and readability were improved.

AI, tracks & vehicle art

  • São Paulo now supports up to 32 AI vehicles on PC.
  • AI racing lines were improved across multiple circuits.
  • Tree rendering and placement were optimized.
  • Track penalty trigger zones were adjusted for more consistent detection.
  • Racing Line assist was improved across multiple tracks.
  • Small vehicle art fixes were made, including MoTeC display flicker and tyre temperature data, plus several driver animation polish passes.

For league ops, we should refresh GT3 baseline setups and driver notes, confirm wheel/FFB defaults, and retest any UDP-dependent overlays or timing tools before race night.

From the changelog

Structured change list parsed from the official notes.

cars

  • Update 1.6.0.1 continues our ongoing work to improve stability, driving feel in Project Motor Racing, while addressing several issues raised by the community. [img src="{STEAM_CLAN_IMAGE}/45601812/6a437e7f8d92b51a47d572b8d605730065746292.jpg"] The primary focus of this update is a substantial evolution of the tyre model in the GT3 class . This work brings the GT3 cars closer to their intended driving behaviour, with more accurate slip and grip angles, clearer feedback at the limit, and a far more natural transition between grip and loss of traction. The goal is to deliver a more believable, consistent, and accurate driving experience, particularly when pushing at race pace. As with previous physics revisions, this change [url="https://store.steampowered.com/news/app/299970/view/512983651355460315"]affects the balance of existing setups. Custom car setups for GT3 cars created prior to this update may no longer behave as intended and will likely require adjustment to suit the revised tyre and vehicle behaviour. Additionally, this patch brings Force Feedback (FFB) strength balancing across the GT3 class for a more consistent baseline feel as a default. Below is a full breakdown of what’s included in Update 1.6.0.1. [h3] Physics & Handling [/h3] [*] Implemented a more robust throttle response system. [/*][*] Revised Downshift Protection: Simplified the logic to be more reliable and added a percentage allowance for over-revving to make it less restrictive. [/*][*] Fixed issues with automatic gears and throttle blip assist for better stability during downshifts. [/*][*] Lowered Tyre Pre-heating temperatures across all classes. [/*] [h3] GT3 [/h3] [*] Updated tyre model to provide a more realistic representation of slip and grip angles, improving behaviour at and beyond the limit. [/*][*] Reworked Traction Control (TC) and Antilock Braking System (ABS) logic to allow more natural lateral slip while reducing excessive longitudinal slip, improving overall balance and driveability. [/*][*] Due to these changes, players are advised to review and refine existing custom setups for this class. [/*] [h3] LMDh [/h3] [*] Full Traction Control (TC) rework to improve consistency and usability. [/*][*] TC settings 2 through 10 now offer a more meaningful and usable range (Note: Setting 1 is currently bypassed/off). [/*][*] Improved downshift protection behaviour. [/*][*] Fixed an issue that could cause the engine to stall when shifting into neutral. [/*] [h3] GTO [/h3] [*] Relaxed Traction Control (TC) settings to allow more performance and driver influence at the limit. [/*] [h3] Group 5 & Group C [/h3] [*] Adjusted Traction Control (TC) slip angles for improved stability under load. [/*][*] Increased clutch slip on downshifts to improve stability during aggressive deceleration. [/*] [h3] Input & Force Feedback [/h3] [*] Logitech TrueForce is now disabled by default on PC. [/*][*] Force Feedback (FFB) strength balanced across GT3 class for a more consistent baseline feel. [/*][*] Fixed an issue that prevented setup selection via mouse input when large numbers of setups were present. [/*][*] Improved Force Feedback (FFB) on wet track conditions. [/*] [h3] UI [/h3] [*] Fixed incorrect constant data being sent via UDP. [/*][*] Improve navigation and readability in the player stats menu. [/*] [img src="{STEAM_CLAN_IMAGE}/45601812/2b355f62ac429b567d7bdc42fe80f987ed57b4db.jpg"] [h3] Online & Multiplayer [/h3] [*] Fixed an issue causing opponent cars to ghost unexpectedly during online races. [/*][*] Fixed a bug that could result in players joining an unintended lobby. [/*] [h3] AI Opponents [/h3] [*] Increased grid capacity at São Paulo to support up to 32 AI vehicles on PC. [/*][*] Improved racing line behaviour across multiple circuits. [/*] [h3] Tracks & Environment [/h3] [*] Optimised tree rendering and placement for improved visuals and performance. [/*][*] Adjusted track penalty trigger zones for more consistent detection. [/*][*] Improved the Racing Line assist across multiple tracks. [/*] [h3] Vehicle Art [/h3] [*] Various small art fixes on several vehicles. [/*][*] Corrected MoTeC display number flickering on multiple cars. [/*][*] MoTeC displays now receive correct tyre temperature data. [/*][*] Polished several driver animations. [/*] Thank you for your support. We hope you continue to enjoy Project Motor Racing.

Official sources

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