Les Leston began racing with his SS100 in 1949 after which he turned to F3 in 1950, winning the british Championship in 1953. He participated in 3 Grand Prix. He won the British Saloon Car Championship in 1958 and the British GT Championship in 1961.
Salvadori raced for the factory teams of Cooper, Aston Martin, Vanwall, BRM and Connaught. He also drove F1 Ferrari Maserati, Cooper - Maserati and Connaught for private entrants. His best result in the FIA F1 World Championship was 4th in 1958 behind Mike Hawthorn, Moss and Brooks.