PORSCHE RACING HISTORYGianni Balzarini (I)
1964 : Targa Florio - 2nd overall
26 April 1964 - Targa Florio - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 84 | Porsche 904 GTS | 904-006 | GT2.0 | Gianni Balzarini (I)/Herbert Linge (D) | Porsche System Engineering (D) | 2nd | 2nd | 10 laps |