iRacing season 4 released on September 9, 2025, following a scheduled downtime to push the update on the server. The developers had been hinting at several major changes to tracks, cars, and the simulation UI, and have kept their promise. This was a part of their quarterly season release and will surely set a benchmark for future updates. In this article, we will brief you about the area and nature of changes for iRacing season 4.
iRacing season 4 release date: New UI pics, new cars, new tracks, and more details
New UI
The remodelling has been done in a way to keep the experience familiar for users while introducing a fresh look. Various features have been added, such as minimized and expanded states of black boxes and reorganization of sim options. Users can now toggle control for all movable elements while pressing Alt-K and use the same to change the size of the virtual mirror. The camera tool now has a dedicated button on the session screen, and tooltips have been added for the majority of controls.
New cars
Both the GT3 and GT4 series got reworked with emphasis on performance, tires, and physics overhaul. The same can be said about several NASCAR series that received extended attention. The new cars in the game are Aston Martin Vantage GT3 EVO, Dallara IL-15, and Ford Mustang GT4. The Aston Martin is a sports car that features revised aerodynamics and an engine overhaul. Dallara is a formula car, although introduced in 2015 to the INDY NXT series, it has received timely updates to hone it into a capable machine. Another new sports car, the Mustang GT4, boasts an 8-cylinder V engine with a natural fiber body, giving it lightweight and high speed. Several other cars received minor adjustments, the details of which can be found in the patch notes.
Tracks
A new track with seven configs from Mexico City has been added to the game. The Autodromo Hermanos Rodriguez has hosted several racing series in the real world, and the users will find it equally intriguing while playing the game. On a side note, the Charlotte Motor Speedway has undergone an art overhaul to match the current real-world track. This has also unlocked new configs for the track, as well as new versions of the older configs. As with the cars, several other tracks have received minor and major adjustments. It is forecasted that all tracks on the NASCAR schedule will receive an update to give the users a real-world experience.
It may also be noted that AI racing has been enabled for several tracks, and the AI drivers have been retrained for better performance. Graphics, audio, controls, and other parameters have received bug fixes and upgrades
That will be all from Digistatement. For detailed changes and descriptions, you can read the full patch notes here. If you are unclear on any part of the update, let us know. Also, check other articles on our site covering the latest developments and updates for various games.