2028 engine regulations | RACER

2028 engine regulations

Mazda MX-5 Cup | Round 13 - Road Atlanta | Livestream

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Mazda MX-5 Cup | Round 13 - Road Atlanta | Livestream

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IndyCar to use current engine in first tests with new chassis

IndyCar

IndyCar to use current engine in first tests with new chassis

By Marshall Pruett - Apr 14, 2026, 12:38 PM ET

Initial testing of IndyCar's 2028 chassis will be carried out with the current motor while the series continues to work with Honda and Chevrolet on finalizing the new engine regulations.

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