1 | 1997 | A1-Ring | 66 | Konrad Motorsport | Porsche 911 GT2 | Porsche PF636T | Toni Seiler | GT2 | 8 | |
2 | 1998 | A1-Ring | 66 | Konrad Motorsport | Porsche 911 GT2 | Porsche PF636T | Altfrid Heger | GT2 | 4 | 3 |
3 | 2000 | A1-Ring | 5 | Konrad Motorsport | Porsche 911 GT2 | Porsche PF638T | Jürgen von Gartzen | GT | 12 | 5 |