PORSCHE RACING HISTORYPorsche 904 GTS - Chassis No. 904-078
26 April 1964 - Targa Florio - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 94 | Porsche 904 GTS | 904-078 | GT2.0 | Andrea Vianini (RA)/Bruno Deserti (I) | Andrea Vianini | DNF | 3 laps - Accident |
31 May 1964 - Nürburgring 1000 km - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 63 | Porsche 904 GTS | 904-078 | GT2.0 | Andrea Vianini (RA)/Nasif Estéfano (RA) | Andrea Vianini (RA) | 10th | 5th | 23rd | 42 laps |
5 July 1964 - Reims 12 Hours - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 44 | Porsche 904 GTS | 904-078 | GT2.0 | Andrea Vianini (RA)/Nasif Estéfano (RA) | Andrea Vianini (RA) | 5th | 1st | 22nd | 273 laps |