iRacing’s commitment to single-player racing expands further with the release of 2026 Season 4 with a deep set of newly unlocked AI Racing content. Eight cars, including all four new releases for the coming build, have been added, as well as a deep slate of 19 new track layout unlocks across eight circuits.

The Aston Martin Valkyrie AMR-LMH, Caterham Academy and 420R, and Gen 4 Grand National headline the new cars that will be AI-enabled immediately with their release on iRacing. The Valkyrie and both Caterhams will also launch as rain-enabled cars, giving users the ability to test their wet weather racing skills.

Alongside them, four additional road racing cars have been added for the new season. On the sports car side, two generations of Daytona Prototypes—the Chevrolet Corvette C7 and [Legacy] Riley MkXX—will make their AI debuts, as will the [Legacy] BMW Z4 GT3. Formula car racers can enjoy competing with and against the Formula Renault 2.0 in AI racing for the first time.

iRacing’s new scans of Road America, The Milwaukee Mile, and Mid-Ohio Sports Car Course will also come fully AI-equipped for all layouts with their launch. Joining them with AI unlocks will be the remaining layouts at Auto Club Speedway (Competition, Interior, and Moto) and Kansas Speedway (Road Course, Infield Road Course). In addition, dirt oval racers will be able to run AI races at USA International Speedway, Oswego Speedway, and Federated Auto Parts Raceway at I-55 for the first time.