PORSCHE RACING HISTORYEnnio Bonomelli (I)
1970 : Monza 1000 km - 1st in class
25 April 1970 - Monza 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 70 | Porsche 911 S | GT+2.0 | Giancarlo Rondanini (I)/Ennio Bonomelli (I) | Giancarlo Rondanini | 22nd | 1st | 31st | 122 laps |
11 October 1970 - Zeltweg 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 47 | Porsche 911 T/R | 118 25 414 | GT2.5 | Ennio Bonomelli (I)/Fiorenzo Genta (I) | Ennio Bonomelli (I) | DNF | 27th |