1 | 1997 | A1-Ring | 31 | Augustin Motorsport | Porsche 911 GT2 Evo | Porsche PF636T | Horst Felbermayr Jr./Stefano Buttiero/ | GT1 | 23 | |
2 | 1998 | A1-Ring | 96 | Proton Competition | Porsche 911 GT2 | Porsche PF636T | Horst Felbermayr Jr. | GT2 | 15 | 12 |
3 | 2000 | A1-Ring | 1 | Chamberlain Motorsport | Chrysler Viper GTS-R | Chrysler 8.0 V10 | Horst Felbermayr Jr. | GT | 10 | 7 |
4 | 2001 | A1-Ring | 8 | Proton Competition | Porsche 911 GT2 | Porsche PF638T | Christian Ried/Horst Felbermayr Jr./ | GT | 12 |