PORSCHE RACING HISTORYWilliam Vollery (CH)
1976
13 June 1976 - Le Mans 24 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 72 | Porsche 911 Carrera RS | 911 360 0960 | GTX | Jean-Pierre Aeschlimann (CH)/Roger Dorchy (F)/William Vollery (CH) | William Vollery (CH) | DNF | 37th | 82 laps - Battery |
4 September 1976 - Dijon 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 Carrera RSR | 911 460 9058 | Gr.5 | William Vollery (CH)/Jean-Pierre Aeschlimann (CH)/Jean-Louis Lafosse (F) | William Vollery/Jean-Pierre Aeschlimann (CH) | 14th | 12th | 20th | 266 laps |