1 | 4 | United States Grand Prix West | 9 | Team ATS | ATS D4 | Ford Cosworth Cosworth DFV | 4 | Transmission |
2 | 5 | Belgian Grand Prix | 9 | Team ATS | ATS D4 | Ford Cosworth Cosworth DFV | 15 | Engine |
3 | 14 | United States Grand Prix | 14 | Unipart Racing Team | Ensign N180 | Ford Cosworth Cosworth DFV | 25 | Steering |