1 | 9 | British Grand Prix | 5 | Nigel Mansell | Williams FW11 | Honda RA166-E | 2 | 1 |
1 | 9 | British Grand Prix | 6 | Nelson Piquet | Williams FW11 | Honda RA166-E | 1 | 2 |
2 | 13 | Italian Grand Prix | 6 | Nelson Piquet | Williams FW11 | Honda RA166-E | 6 | 1 |
2 | 13 | Italian Grand Prix | 5 | Nigel Mansell | Williams FW11 | Honda RA166-E | 3 | 2 |