Having begun his hillclimbing career in 1953 with a Cooper-JAP that had previously been driven by Peter Collins, he won three successive championships in the car from 1955 to 1957.
Comezando a súa carreira nas subidas en 1953 cun Cooper - JAP anteriormente pilotado por Peter Collins, gañou tres campionatos consecutivos no automóbil de 1955 a 1957.