IndyCar will run the current engine and chassis formula in 2027 before debuting the replacement for the current Dallara DW12 and 2.2-liter, twin-turbo V6 engine combo, which was introduced in 2012. The current chassis and engine formula was modified in 2024 with a low-voltage hybrid unit.

This multiyear announcement extends Chevrolet’s current participation in the IndyCar Series. Chevrolet is a nine-time champion since its return to the sport 14 seasons ago in 2012. Including the 1988-93 and 2002 titles, Chevrolet has won 16 total IndyCar Series manufacturer championships.

Honda began IndyCar Series competition in 1994 and has been a continuous occupier of IndyCar grids as an engine supplier for more than 30 years – including six seasons as the sole engine supplier. The 2025 NTT IndyCar Series season marked its 11th manufacturers’ title in multiple manufacturer competition and the fifth in the last eight years.