INDYCAR officials have announced a six-position starting grid penalty for the cars of No. 4 Chip Ganassi Racing and No. 15 Rahal Letterman Lanigan Racing due to unapproved engine changes following the race on Sunday, May 26 at Indianapolis Motor Speedway.
The teams violated rule 16.2.3.2., which states that a fifth engine can only earn engine manufacturer points if a full season entrant has completed the required mileage with its first four engines. Otherwise, a fifth engine or more is considered an unapproved engine change.
According to rule 16.6.1.2., the penalty is a six-position starting grid penalty for road and street course events and nine positions at oval events. This sanction will be applied at the series' next event, the Chevrolet Detroit Grand Prix presented by Lear, on Sunday, June 2 on the Streets of Detroit.
Robert Shwartzman returns to PREMA for the 2025 INDYCAR debut
The Israeli-born driver joins PREMA for his debut in INDYCAR, after a stint in F2 and endurance racing.
IndyCar may return to Mexico in 2026
Discussions are progressing between the Mexican organizers and the series.
An analysis of the Arlington street circuit for IndyCar 2026
Details of the 14-turn layout and its route in IndyCar's new urban challenge
IndyCar to debut street circuit in Arlington Texas in 2026
The Arlington sports district will host a street circuit thanks to a collaboration between Penske Entertainment, the Dallas Cowboys and REV Entertainment.
