Known for his success in Indycar racing, garnering many wins with cars bearing his name, Roger Penske’s first purpose built race car – the PC1 – was a Formula One car designed to campaign Mark Donohue in the 1975 F1 season. Making it’s debut in late 1974, the PC1 only managed a best result of fifth place in France, after which the car was retired in favor of a March 751, which is the car Mark Donohue was driving when he was killed in practice for the Austrian Grand prix. John Watson signed on to replace Donohue and in 1976 won the only F1 race for Penske racing… at Austria. Penske pulled out of F1 at the end of the year to focus on Indy car racing.