| 2005 |
DTM: Stern Team OPC - 8th, 17 pts (2 podiums)
|
| 2004 |
DTM: OPC Team Holzer - 14th, 3 pts
|
| 2003 |
F1: Sauber Petronas - 11th, 13 pts (1 podium)
|
| 2002 |
F1: Orange Arrows (12 races) and Sauber Petronas (1 race) - 17th, 2 pts
|
| 2001 |
F1: Jordan Grand Prix - 13th, 6 pts
|
| 2000 |
F1: Jordan Grand Prix - 9th, 11 pts (2 podiums)
|
| 1999 |
F1: Jordan Grand Prix - 3rd, 54 pts (2 wins, 6 podiums, 1 pole)
|
| 1998 |
F1: Williams Mechachrome - 7th, 17 pts (1 podium)
|
| 1997 |
F1: Rothmans Williams Renault - 2nd, 42 pts (1 win, 7 podiums, 1 pole, 6 fastest laps)
|
| 1996 |
F1: Sauber-Ford - 12th, 7 pts
|
| 1995 |
F1: Sauber-Ford - 9th, 15 pts (1 podium)
|
| 1994 |
F1: Sauber-Mercedes - 13th, 7 pts
|
| 1993 |
Japanese Sports Prototype Championship: Nova;
F3000 Japanese Championship: Nova Engineering (1 win);
F1: test driver for Mugen engines and Bridgestone tyres in a Tyrrell-Honda
|
| 1992 |
Japanese Sports Prototype Championship: Nova;
FIA Sports Car World Championship: Euro Racing;
F3000 Japanese Championship: Nova Engineering - 3rd
|
| 1991 |
F3000: Vortex - 14th, 5 pts
|
| 1990 |
FIA World Sports Prototype Championship: Mercedes-Benz junior team;
F3000: Eddie Jordan - 16th, 3pts
|
| 1989 |
F3 German Championship: Schuebel/Reynard - 2nd (ahead of Michael Schumacher)
|
| 1988 |
Formula Opel Lotus: Jochen Mass Junior team - German Champion
|
| 1987 |
FF2000: German Championship - 2nd
|
| 1986 |
FF2000
|
| 1980-85 |
Karting: German Junior Champion and other titles |