2008
| | American Le Mans Series LMP1 | | Position: 8 (42 points) | 3 races. 0 wins. 0 pole positions. 3 podiums. ? fastest laps.
| | Team: Audi Sport North America | | Car: Audi R10 TDI | | Complete results needed. |
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2007
| | American Le Mans Series LMP1 | | Position: 12 (26 points) | 1 race. 1 win. 0 pole positions. 1 podium. 0 fastest laps.
| | Team: Audi Sport North America | | Car: Audi R10 TDI |
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| | | DTM | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Audi Sport Team Abt | | Car: Audi A4 DTM 07 |
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| | | Porsche Supercup | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Porsche AG | | Car: Porsche 911 GT3 Cup 997 |
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2006
| | American Le Mans Series LMP1 | | Position: 4 (99 points) | 7 races. 2 wins. 1 pole position. 5 podiums. ? fastest laps.
| | Team: Champion Racing | | Car: Audi R10 TDI | | Complete results needed. |
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2005
| | American Le Mans Series LMP1 | | Position: 1 (182 points) | 10 races. 4 wins. 0 pole positions. 10 podiums. ? fastest laps.
| | Team: Champion Racing | | Car: Audi R8 | | Complete results needed. |
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2004
| | DTM | | Position: no position | 11 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Team Joest | | Car: Audi A4 |
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| | | American Le Mans Series LMP1 | | Position: 9 (26 points) | 1 race. 1 win. 0 pole positions. 1 podium. ? fastest laps.
| | Team: Team Veloqx | | Car: Audi R8 | | Complete results needed. |
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| | | BTCC Masters | |
| Race position: 4. | | Team: Seat Sport UK | | Car: Seat Toledo | | Complete results needed. |
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2003
| | American Le Mans Series LMP900 | | Position: 1 (170 points) | 9 races. 5 wins. 3 pole positions. 9 podiums. ? fastest laps.
| | Team: Team Joest | | Car: Audi R8 | | Complete results needed. |
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2002
| | American Le Mans Series LMP900 | | Position: 3 (209 points) | 10 races. 3 wins. 6 pole positions. 6 podiums. ? fastest laps.
| | Team: Audi Sport Joest | | Car: Audi R8 | | Complete results needed. |
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2001
| | American Le Mans Series LMP900 | | Position: 2 (194 points) | 8 races. 3 wins. 0 pole positions. 7 podiums. ? fastest laps.
| | Team: Audi Sport North America | | Car: Audi R8 | | Complete results needed. |
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2000
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1999
| | American Le Mans Series Prototype | | Position: 52 (20 points) | 1 race. 0 wins. 0 pole positions. 0 podiums. ? fastest laps.
| | Team: Audi Sport / Joest Racing | | Car: Audi R8R | | Complete results needed. |
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1998
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1997
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1996
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1995
| | German Supertouring Championship | | Position: 3 (391 points) | 16 races. 5 wins. 1 pole position. 9 podiums. ? fastest laps.
| | Team: ROC | | Car: Audi A4 | | Complete results needed. |
| |
| | | FIA Touring Car World Cup | | Position: 1 (70 points) | 2 races. 1 win. 0 pole positions. 2 podiums. 0 fastest laps.
| | Team: ROC Competition | | Car: Audi A4 |
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1994
| | German Supertouring Championship | | Position: 2 (98 points) | 8 races. 3 wins. 1 pole position. 5 podiums. ? fastest laps.
| | Team: ROC Competition | | Car: Audi 80 Quattro | | Complete results needed. |
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| | | FIA Touring Car World Cup | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: ROC Compétition | | Car: Audi 80 Quattro |
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1993
| | French Touring Car Championship | | Position: 1 (218 points) | 10 races. 5 wins. 3 pole positions. 6 podiums. 3 fastest laps.
| | Team: ROC Compétition | | Car: Audi 80 Quattro |
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1992
| | DTM | | Position: 15 (35 points) | 12 races. 1 win. 2 pole positions. 2 podiums. 0 fastest laps.
| | Team: AZR | | Car: Audi V8 quattro |
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1991
| | DTM | | Position: 1 (174 points) | 20 races. 4 wins. 2 pole positions. 7 podiums. 2 fastest laps.
| | Team: AZR | | Car: Audi V8 quattro |
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1990
| | DTM | | Position: 10 (80 points) | 21 races. 1 win. 0 pole positions. 3 podiums. 0 fastest laps.
| | Team: MS Jet Racing | | Car: Mercedes 190E 2.5-16 Evo2 | | Car: Mercedes 190E 2.5-16 Evo |
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1989
| | DTM | | Position: 13 (135 points) | 18 races. 0 wins. 0 pole positions. 2 podiums. 0 fastest laps.
| | Team: Grab Motorsport | | Car: Ford Sierra Cosworth |
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| | | Formula 3 Germany | | Position: 13 (64 points) | 7 races. 0 wins. 0 pole positions. 1 podium. 1 fastest lap.
| | Team: Team JSK Baumanagement | | Car: Dallara F389 (Volkswagen) |
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1988
| | DTM | | Position: 15 (125 points) | 13 races. 0 wins. 0 pole positions. 2 podiums. ? fastest laps.
| | Car: Ford Sierra Cosworth | | Complete results needed. |
| |
| | | Formula 3 Germany | | Position: 3 (132 points) | 11 races. 2 wins. 2 pole positions. 5 podiums. 1 fastest lap.
| | Team: Team Sonax Autopflege | | Car: Martini MK55 (Volkswagen) | | Car: Martini MK52 (Volkswagen) |
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| | | Formula 3 European Cup | |
| Race position: no position. | | Team: Team Sonax Autopflege | | Car: Martini MK55 (Volkswagen) | | Complete results needed. |
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1987
| | Formula 3 Germany | | Position: 7 (46 points) | 9 races. 0 wins. 0 pole positions. 2 podiums. 0 fastest laps.
| | Team: Frank Biela | | Car: Reynard 873 (Volkswagen) |
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| | | DTM | | Position: 14 (59 points) | 7 races. 1 win. 0 pole positions. 1 podium. ? fastest laps.
| | Car: Ford Sierra XR4Ti | | Complete results needed. |
| |
| | | Formula 3 Euro Series | | Position: 10 (16 points) | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: ACE | | Car: Reynard 873 (Volkswagen) |
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1986
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1985
| | Formula 3 Germany | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Malte Bongers Motorsport | | Car: Ralt RT30 (Volkswagen) |
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1984
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