PORSCHE RACING HISTORYPeter Ettmüller (CH)
1970 : Zeltweg 1000 km - 2nd in class
11 October 1970 - Zeltweg 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 914/6 | 914 043 0181 | GT2.0 | Ernst Seiler (CH)/Peter Ettmüller (CH) | Hart Ski Racing Team (CH) | 14th | 2nd | 25th | 137 laps |