Killed in a road crash in France whilst on his way to the 1966 French GP, in which he was not only visiting to spectate but also to film, for throughout the season, he had been the adviser and driving double of actor Yves Montand, who played an Italian and Ferrari ex-World Champion in the film Grand Prix. A doctor of engineering, he won the first World Championship. Despite being an intelligent and undeniably great driver, his controversial driving style and aloofness have dented his legacy somewhat.