1990
FIA World Sports-Prototype Championship for Drivers
3rd
1989
World Sports Prototype Championship for Drivers
2nd
1989
24 Hours of Le Mans - C1
1st
1987
IMSA Camel GT Championship - GTP
3rd
1985
FIA World Endurance Championship - Prototypes
3rd
1984
DRM Deutsche Rennsport Meisterschaft
2nd
1984
FIA World Endurance Championship - Prototypes
2nd
1983
FIA World Endurance Championship - Prototypes
3rd
1982
Le Mans 24h - C class
2nd
1980
16° Spanish Grand Prix - Jarama - Formula 1
2nd
1978
Warsteiner Super Star Cup
2nd
1978
6 Hours of Silverstone - World Sports Car
1st
1977
6 Hours of Watkins Glen - World Sports Car
1st
1977
6 Hours of Brands Hatch - World Sports Car
1st
1977
6 Hours of Silverstone - World Sports Car
1st
1976
6 Hours of Watkins Glen - World Sports Car
3rd
1976
500 Km de Dijon - World Sports Car
1st
1976
15° Coppa Florio - Enna Pergusa - World Sports Car
1st
1976
6 Hours of Mugello - World Sports Car
1st
1976
6 Hours of Vallelunga - World Sports Car
1st
1976
6 Hours of Dijon - World Sports Car
1st
1976
1000 Km of Monza - World Sports Car
1st
1976
500 Km of Imola - World Sports Car
1st
1976
200 Miles of Salzburgring - World Sports Car
1st
1975
Swiss Grand Prix - Dijon - Formula One
3rd
1975
Kyalami 1000 km - Division 1
1st
1975
14° Coppa Florio - Enna Pergusa - World Sports Car
1st
1974
26° BRDC International Trophy - Silverstone - Formula 1
2nd
1972
European Touring Car Championship
1st
1972
Springbok Trophy Series
3rd
1972
24 Hours of Spa-Francorchamps
1st
1971
Springbok Trophy Series
2nd