PORSCHE RACING HISTORYPorsche 914/6 - Chassis No. 914 043 0181
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 |
25 April 1971 - Monza 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 914/6 | 914 043 0181 | GT2.0 | Peter Ettmüller (CH)/Ernst Seiler (CH) | Squadra Tartaruga (CH) | 13th | 1st | 18th | 132 laps |
30 May 1971 - Nürburgring 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 104 | Porsche 914/6 | 914 043 0181 | GT2.0 | Ernst Seiler (CH)/Peter Ettmüller (CH) | Squadra Tartaruga (CH) | DNF | 30th | 24 laps - Mechanical |