PORSCHE RACING HISTORYPorsche 917/20 - Chassis No. 717/20-001
18 April 1971 - Le Mans Test - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/20 | 717/20-001 | S5.0 | Jo Siffert (CH)/Willi Kauhsen (D) | Martini International Racing Team | 5th | 5th |