Maserati
Roberto Mieres finished P8 in the 1955 World Drivers' Championship with 7 points. Across 6 races: 0 wins, 0 podiums and 0 pole positions, with a best finish of P4.
| Round | Race | Team | Grid | Finish | Points | Status |
|---|---|---|---|---|---|---|
| 1 | Argentine Grand Prix | Maserati | 16 | P5 | 2 | +5 Laps |
| 2 | Monaco Grand Prix | Maserati | 6 | P13 | Transmission | |
| 4 | Belgian Grand Prix | Maserati | 13 | P5 | 1 | +1 Lap |
| 5 | Dutch Grand Prix | Maserati | 7 | P4 | 4 | +1 Lap |
| 6 | British Grand Prix | Maserati | 6 | P11 |
| Engine |
| 7 | Italian Grand Prix | Maserati | 7 | P7 | +2 Laps |