PORSCHE RACING HISTORYHarald Grohs (D)
1979
10 June 1979 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 37 | Porsche 935/77A | 930 890 0011 | Gr.5+2.0 | John Fitzpatrick (GB)/Jean-Louis Lafosse (F)/Harald Grohs (D) | Gelo Sportswear International (D) | DNF | 11th | 196 laps - Engine |