Thompson fitted his racing in with his work schedule. Twice winning his class at Le Mans and victories at Spa, Goodwood and other circuits, though he drove for fun, Thompson drove like no amateur. He only competed in one Grand Prix, the British in 1952, beating Farina in a straight fight for fifth place and two points.
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.