| 🇧🇪Belgian Grand Prix 1955 | 5 Jun 1955 | Eugenio Castellotti | 1 | Gearbox | |
| 🇲🇨Monaco Grand Prix 1955 | 22 May 1955 | Eugenio Castellotti | 4 | 2 | 6 |
| 🇲🇨Monaco Grand Prix 1955 | 22 May 1955 | Luigi Villoresi | 7 | 5 | 2 |
| 🇲🇨Monaco Grand Prix 1955 | 22 May 1955 | Louis Chiron | 19 | 6 | |
| 🇲🇨Monaco Grand Prix 1955 | 22 May 1955 | Alberto Ascari | 2 | Accident | |
| 🇦🇷Argentine Grand Prix 1955 | 16 Jan 1955 | Eugenio Castellotti | 12 | Accident | |
| 🇦🇷Argentine Grand Prix 1955 | 16 Jan 1955 | Luigi Villoresi | 12 | Accident | |
| 🇦🇷Argentine Grand Prix 1955 | 16 Jan 1955 | Alberto Ascari | 2 | Accident | |
| 🇪🇸Spanish Grand Prix 1954 | 24 Oct 1954 | Alberto Ascari | 1 | Clutch | 1 |
| 🇪🇸Spanish Grand Prix 1954 | 24 Oct 1954 | Luigi Villoresi | 5 | Brakes | |