iRacing expands AI Racing with eight cars and 19 track layouts for Season 4 2026

iRacing has announced a significant expansion to its single-player AI Racing mode for the 2026 Season 4 update, introducing eight newly AI-enabled vehicles and 19 additional track configuration unlocks across eight circuits.

The new car roster includes four recently released vehicles receiving immediate AI support: the Aston Martin Valkyrie AMR-LMH, Caterham Academy, Caterham 420R, and Gen 4 Grand National. The Valkyrie and both Caterham models will also feature rain-enabled AI capabilities, allowing drivers to practice wet-weather racing against the artificial intelligence. Four additional legacy road racing cars round out the update: the Chevrolet Corvette C7 and Riley MkXX Daytona Prototypes, the BMW Z4 GT3, and the Formula Renault 2.0.

On the track side, iRacing's newly scanned versions of Road America, The Milwaukee Mile, and Mid-Ohio Sports Car Course will launch with full AI support across all available layouts. Existing circuits receiving new AI-unlocked configurations include Auto Club Speedway (Competition, Interior, and Moto layouts) and Kansas Speedway (Road Course and Infield Road Course). Dirt oval racing expands with AI availability at USA International Speedway, Oswego Speedway, and Federated Auto Parts Raceway at I-55 for the first time.