Triumph and tragedy
- Fangio and Moss dominated for Mercedes, finishing one-two at four Grands Prix.
- The Le Mans disaster (not an F1 race) led to the cancellation of four Grands Prix and Mercedes' withdrawal from racing.
Calendar
Completed races link to full results.
| Rd | Grand Prix | Circuit | Date |
|---|---|---|---|
| 1 |  Argentine Grand Prix | Autódromo Juan y Oscar Gálvez | Jan 16, 1955 |
| 2 |  Monaco Grand Prix | Circuit de Monaco | May 22, 1955 |
| 3 |  Indianapolis 500 | Indianapolis Motor Speedway | May 30, 1955 |
| 4 |  Belgian Grand Prix | Circuit de Spa-Francorchamps | Jun 5, 1955 |
| 5 |  Dutch Grand Prix | Circuit Park Zandvoort | Jun 19, 1955 |
| 6 |  British Grand Prix | Aintree | Jul 16, 1955 |
| 7 |  Italian Grand Prix | Autodromo Nazionale di Monza | Sep 11, 1955 |
Final driver standings
| Pos | Driver | Team | Points |
|---|---|---|---|
| 1 | Juan Fangio | Mercedes | 40 |
| 2 | Stirling Moss | Mercedes | 23 |
| 3 | Eugenio Castellotti | Lancia |
