PORSCHE RACING HISTORYRalf-Dieter Schreiber (D)
1978
28 May 1978 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 12 | Porsche 935 | 930 770 0907 | Gr.5+2.0 | Volkert Merl (D)/Ralf-Dieter Schreiber (D)/Franz Konrad (A) | Konrad-Racing (D) | 4th | 4th | 11th | 44 laps |