PORSCHE RACING HISTORYOtto Stuppacher (A)
1970 : Zeltweg 1000 km - 3rd in class
11 October 1970 - Zeltweg 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 32 | Porsche 906 | S2.0 | Kurt Rieder (A)/Otto Stuppacher (A)/Siegfried Pust (A) | Bosch Racing Team (A) | 13th | 3rd | 18th | 139 laps |