Assetto Corsa Competizione [v1.8.18] May 2026

A critical update for competitive players, introducing new gear ratios for the M4 GT3 to match real-world homologation standards.

To understand the "deep content" of v1.8.18, one must consider the physics engine it rests upon, which was completely transformed in the 1.8 cycle: Assetto Corsa Competizione [v1.8.18]

Deep dive into the v1.8.18 update and the massive v1.8 physics overhaul that defines it: A critical update for competitive players, introducing new

Adjustments were made to level the playing field across several GT3 models. The Aston Martin Vantage V8 GT3 received improvements to its pace, while the BMW M4 GT3 and Audi R8 LMS GT3 EVO2 were tuned to be slightly slower. Assetto Corsa Competizione (ACC) version 1

Assetto Corsa Competizione (ACC) version 1.8.18, released in August 2022, serves as a finalized refinement of the massive v1.8 "Physics 2.0" overhaul. While the core v1.8 update introduced fundamental changes to the tire model and force feedback , v1.8.18 specifically focuses on and minor hotfixes to stabilize the racing environment. Key Changes in v1.8.18 The most impactful aspects of this specific hotfix include:

A new friction model changed how tires generate heat and grip. Tires now take longer to warm up but retain core heat better, making out-laps more challenging but providing more consistent long-stint performance.