PORSCHE RACING HISTORYPorsche 904 GTS - Chassis No. 904-022
5 July 1964 - Reims 12 Hours - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 41 | Porsche 904 GTS | 904-022 | GT2.0 | Jo Siffert (CH)/Heinz Schiller (CH) | Heinz Schiller (CH) | DNF | 19th | Clutch |