During 1985, Nigel Mansell wrote off two cars in accidents: the first when he went head-on into a barrier at Detroit, the second when he crashed heavily at Paul Ricard due to tyre blowout at over , unwittingly setting the record for the highest-speed crash in Formula One. The Honda engine proved to be extremely powerful, with Head claiming around 1000–1250 bhp in qualifying, and up to in race configuration.