1 | 3 | Belgian Grand Prix | 17 | Siffert Racing Team | Lotus 24 | BRM P56 | 13 | Engine |
2 | 4 | French Grand Prix | 30 | Siffert Racing Team | Lotus 24 | BRM P56 | 17 | Clutch |
3 | 7 | Austrian Grand Prix | 20 | Siffert Racing Team | Lotus 24 | BRM P56 | 12 | Accident |
4 | 10 | Mexican Grand Prix | 22 | Rob Walker Racing Team | Brabham BT11 | BRM 1.5 V8 | 13 | Fuel Pump |