No one mentioned John Surtees yet?
Only person to be World Champion on 2 and 4 wheels – at the highest level as well:
Grand Prix motorcycle racing career:
Active years 1952 – 1960
Teams Norton, MV Agusta
Grands Prix 49
Championships 350cc – 1958, 1959, 1960
500cc- 1956, 1958, 1959, 1960
Wins 38
Podium finishes 45
Fastest laps 34
First Grand Prix 1952 500cc Ulster Grand Prix
First win 1955 250cc Ulster Grand Prix
Last win 1960 500cc Nations Grand Prix
Last Grand Prix 1960 500cc Nations Grand Prix
Formula One World Championship career
Active years 1960 – 1972
Teams Lotus, Cooper, Lola, Ferrari,Honda, BRM, McLaren, Surtees
Races 113 (111 starts)
Championships 1 (1964)
Wins 6
Podiums 24
Career points 180
Pole positions 8
Fastest laps 10
First race 1960 Monaco Grand Prix
First win 1963 German Grand Prix
Last win 1967 Italian Grand Prix
Last race 1972 Italian Grand Prix