PORSCHE RACING HISTORYMario Radicella (I)
1973
13 May 1973 - Targa Florio - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 111 | Porsche 911 | GT+2.0 | Marco Micangeli (I)/Mario Radicella (I) | Mario Radicella | DNF | 44th | 0 laps |
2 June 1973 - European GT Championship Imola - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera | GT3.0 | Mario Radicella (I) | DNF | 5 laps |