Bottas says Cadillac brake temperatures caused Mexico City suspension failure

Valtteri Bottas has said his heavy crash at the Mexico City Grand Prix was caused by his Cadillac running in the red zone for too long with brake temperatures. The left-front suspension gave out approaching Turn 1 at the Autódromo Hermanos Rodríguez, leaving him unable to prevent a collision with the barriers. He later gave a thumbs up to indicate he was okay and climbed out of the car, reporting only a muscle bruise.

Bottas said Cadillac has reverted some parts to an older specification and lowered its temperature limits for this weekend's Sao Paulo Grand Prix. He explained that heat from the brakes was going partly to the wishbones, and that the team had not tested running the car at that temperature for so long. The team is continuing stress testing at the factory.

Bottas said he was optimistic about Interlagos, where cooler temperatures and possible rain are forecast for Sunday.