PORSCHE RACING HISTORYEnnio Bonomelli (I)
1973 : Euro GT GP Paris - 3rd overall
25 April 1973 - Monza 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 92 | Porsche 911 Carrera RSR | 911 360 1159 | GT3.0 | Ennio Bonomelli (I)/Teodoro Zeccoli (I) | Ennio Bonomelli (I) | NC | 37th | 114 laps |
13 May 1973 - Euro GT GP Paris - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 19 | Porsche 911 Carrera RSR | 911 360 1159 | GT3.0 | Ennio Bonomelli (I) | Scuderia Brescia Corse (I) | 3rd | 3rd | 4th | 78 laps |
2 June 1973 - European GT Championship Imola - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 81 | Porsche 911 Carrera RSR | 911 360 1159 | GT3.0 | Ennio Bonomelli (I) | 18th | 12th | 33 laps |
24 June 1973 - Euro GT Nivelles - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 911 Carrera RSR | 911 360 1159 | GT3.0 | Ennio Bonomelli (I) | Bonomelli | DNF | 16 laps - DNS R2 |
5 August 1973 - Euro GT Thruxton - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera RSR | 911 360 1159 | GT3.0 | Ennio Bonomelli (I) | Ennio Bonomelli (I) | ? | 6th |
2 September 1973 - Monza 6 Hours - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 911 Carrera RSR | 911 360 1159 | GT3.0 | Ennio Bonomelli (I)/Anton Fischhaber (D) | 6th | 5th | 8th | -13 laps |