2003
| | DTM | | Position: 15 (1 points) | 10 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Euroteam | | Car: Opel Astra Coupe |
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2002
| | DTM | | Position: 14 (3 points) | 9 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Team Phoenix | | Car: Opel Astra Coupe |
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2001
| | DTM | | Position: 17 (12 points) | 7 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Team Holzer |
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2000
| | DTM | | Position: 5 (113 points) | 16 races. 1 win. 2 pole positions. 5 podiums. 1 fastest lap.
| | Team: Team Holzer | | Car: Opel Astra Coupe |
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1999
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1998
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| | | Le Mans 24h - P1 class | |
| Race position: no position. | | Team: Team BMW Motorsport | | Car: BMW V12 Le Mans | | Complete results needed. |
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1997
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1996
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1995
| | German Supertouring Championship | | Position: 1 (418 points) | 16 races. 6 wins. 1 pole position. 8 podiums. ? fastest laps. | | Team: Schnitzer | | Car: BMW 320i | | Complete results needed. |
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| | | FIA Touring Car World Cup | | Position: 12 (13 points) | 2 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: BMW Team Schnitzer | | Car: BMW 318is |
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1994
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| | | FIA Touring Car World Cup | | Position: 3 | 1 race. 0 wins. 0 pole positions. 1 podium. 0 fastest laps.
| | Team: BMW Team Schnitzer | | Car: BMW 318is |
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1993
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| | | Tooheys 1000 | |
| Race position: 15. | | Team: Tony Longhurst Racing | | Car: BMW M3 Evolution |
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1992
| | DTM | | Position: 8 (110 points) | 24 races. 1 win. 0 pole positions. 3 podiums. 1 fastest lap.
| | Team: BMW M Team Schnitzer | | Car: BMW M3 Sport Evolution |
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1991
| | DTM | | Position: 7 (101 points) | 20 races. 1 win. 0 pole positions. 4 podiums. 3 fastest laps.
| | Team: BMW M Team Schnitzer | | Car: BMW M3 Sport Evolution |
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1990
| | DTM | | Position: 6 (119 points) | 22 races. 1 win. 0 pole positions. 4 podiums. 4 fastest laps.
| | Team: BMW M Team Bigazzi | | Car: BMW M3 Sport Evolution |
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1989
| | DTM | | Position: 34 (13 points) | 3 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: AMG | | Car: Mercedes 190E 2.5-16 Evo | | Car: Mercedes 190E 2.5-16 Evo2 |
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| | | Formula 1 | | Position: no position | 0 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Automobiles Gonfaronaise Sportive | | Car: AGS JH23B (Ford) |
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1988
| | Formula 3 Germany | | Position: 1 (164 points) | 11 races. 4 wins. 5 pole positions. 8 podiums. 1 fastest lap.
| | Team: WTS Liqui Moly Equipe | | Car: Reynard 883 (Volkswagen) |
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| | | Formula 3 France | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: WTS Liqui Moly Equipe | | Car: Reynard 883 (Volkswagen) |
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| | | Formula 3 Italy | | Position: no position | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Piemme Motors | | Car: Reynard 883 (Volkswagen) |
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1987
| | Formula 3 Germany | | Position: 2 (98 points) | 8 races. 1 win. 2 pole positions. 6 podiums. 1 fastest lap.
| | Team: WTS Racing Team | | Car: Reynard 873 (Volkswagen) |
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| | | DTM | | Position: 23 (28 points) | 7 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Car: Ford Sierra XR4Ti, Ford Sierra XR4Ti Cosworth, Ford Sierra Cosworth |
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| | | Formula 3 Euro Series | | Position: no position | 2 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: WTS Racing | | Car: Reynard 873 (Volkswagen) |
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| | | Formula 3 Macau GP | |
| Race position: no position. | | Team: WTS Racing Team | | Car: Reynard 873 (Volkswagen) |
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1986
| | DTM | | Position: 17 (39 points) | 7 races. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Car: BMW 325i |
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| | | Porsche 944 Turbo Cup | | Position: 1 (271 points) | 7 races. 3 wins. 3 pole positions. 5 podiums. 2 fastest laps.
| | Car: Porsche 944 Turbo |
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1983
| | Formula 3 Germany | | Position: 23 (1 points) | 1 race. 0 wins. 0 pole positions. 0 podiums. 0 fastest laps.
| | Team: Bertram Schäfer Racing | | Car: Ralt RT3 (Alfa Romeo) |
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1981
| | Renault 5 Turbo Eurocup | | Position: 8 (25 points) | ? races. 0 wins. 1 pole position. 0 podiums. 0 fastest laps.
| | Team: Sport Illustrierte Racing | | Car: Renault 5 Turbo | | Complete results needed. |
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