Colton Herta transitions from IndyCar to Cadillac's F1 team
IndyCar star Colton Herta has signed with Cadillac as a test driver for the 2026 Formula 1 season, marking a significant step in his racing career and a notable moment for American motorsport, as Cadillac prepares to enter F1 with a new driver lineup including Valtteri Bottas and Sergio Perez.