Portuguese Grand Prix
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| Pos | Driver | Constructor | Q1 | Q2 | Gap |
|---|---|---|---|---|---|
| 1 | Nelson Piquet | Williams-Honda | 1:23.621 | 1:22.461 | |
| 2 | Nigel Mansell | Williams-Honda | 1:23.081 | No time | 0.620 |
| 3 | Gerhard Berger | Ferrari | 1:23.164 | 1:25.250 | 0.703 |
| 4 | Michele Alboreto | Ferrari | 1:24.192 | 1:24.832 | 1.731 |
| 5 | Ayrton Senna | Lotus-Honda | 1:25.162 | 1:24.320 | 1.859 |
| 6 | Teo Fabi | Benetton-Ford | 1:25.263 | 1:24.523 | 2.062 |
| 7 | Alain Prost | McLaren-TAG | 1:24.596 | 1:24.905 | 2.135 |
| 8 | Thierry Boutsen | Benetton-Ford | 1:26.372 | 1:25.295 | 2.834 |
| 9 | Riccardo Patrese | Brabham-BMW | 1:26.639 | 1:25.335 | 2.874 |
| 10 | Andrea de Cesaris | Brabham-BMW | 1:31.981 | 1:25.811 | 3.350 |
| 11 | Stefan Johansson | McLaren-TAG | 1:26.147 | 1:26.147 | 3.686 |
| 12 | Derek Warwick | Arrows-Megatron | 1:26.728 | 1:26.882 | 4.267 |
| 13 | Eddie Cheever | Arrows-Megatron | 1:27.062 | 1:27.970 | 4.601 |
| 14 | René Arnoux | Ligier-Megatron | 1:28.241 | 1:28.362 | 5.780 |
| 15 | Philippe Streiff | Tyrrell-Ford | 1:28.970 | 1:28.330 | 5.869 |
| 16 | Jonathan Palmer | Tyrrell-Ford | 1:28.353 | 1:28.426 | 5.892 |
| 17 | Philippe Alliot | Lola-Ford | 1:29.147 | 1:28.361 | 5.900 |
| 18 | Satoru Nakajima | Lotus-Honda | 1:28.776 | 1:28.367 | 5.906 |
| 19 | Ivan Capelli | March-Ford | 1:28.477 | 1:28.694 | 6.016 |
| 20 | Martin Brundle | Zakspeed | 1:28.876 | 1:28.597 | 6.136 |
| 21 | Alessandro Nannini | Minardi-Motori Moderni | 1:28.823 | 1:28.602 | 6.141 |
| 22 | Christian Danner | Zakspeed | 1:30.325 | 1:28.667 | 6.206 |
| 23 | Piercarlo Ghinzani | Ligier-Megatron | 1:29.663 | 1:29.066 | 6.605 |
| 24 | Adrián Campos | Minardi-Motori Moderni | 1:29.538 | 1:30.204 | 7.077 |
| 25 | Pascal Fabre | AGS-Ford | 1:32.490 | 1:30.694 | 8.233 |
| 26 | Nicola Larini | Coloni-Ford | 1:31.319 | 1:30.982 | 8.521 |
| DNQ | Alex Caffi | Osella-Alfa Romeo | 1:31.284 | 1:31.069 | 8.608 |
| DNQ | Franco Forini | Osella-Alfa Romeo | 1:34.723 | 1:35.572 | 12.262 |
| 1 | Nelson Piquet | 70 | 6,0,0,6,6,6,6,9,9,6,9,4,3 | |
| ▲ | 2 | Nigel Mansell | 52 | 1,9,0,0,2,9,9,0,0,9,4,0,9 |
| ▼ | 3 | Ayrton Senna | 51 | 0,6,0,9,9,3,4,4,6,2,6,0,2 |
| 4 | Alain Prost | 46 | 9,0,9,0,4,4,0,0,4,1,0,9,6 | |
| 5 | Stefan Johansson | 26 | 4,3,6,0,0,0,0,6,0,0,1,2,4 | |
| 6 | Gerhard Berger | 18 | 3,0,0,3,3,0,0,0,0,0,3,6,0 | |
| 7 | Teo Fabi | 10 | 0,0,0,0,0,2,1,0,0,4,0,3,0 | |
| Thierry Boutsen | 10 | 2,0,0,0,0,0,0,0,3,3,2,0,0 | ||
| 9 | Michele Alboreto | 8 | 0,4,0,4,0,0,0,0,0,0,0,0,0 | |
| 10 | Satoru Nakajima | 6 | 0,1,2,0,0,0,3,0,0,0,0,0,0 | |
| 11 | Eddie Cheever | 5 | 0,0,3,0,1,0,0,0,0,0,0,1,0 | |
| 12 | Andrea de Cesaris | 4 | 0,0,4,0,0,0,0,0,0,0,0,0,0 | |
| Philippe Streiff | 4 | 0,0,0,0,0,1,0,3,0,0,0,0,0 | ||
| Jonathan Palmer | 4 | 0,0,0,2,0,0,0,2,0,0,0,0,0 | ||
| 15 | Derek Warwick | 3 | 0,0,0,0,0,0,2,0,1,0,0,0,0 | |
| 16 | Martin Brundle | 2 | 0,2,0,0,0,0,0,0,0,0,0,0,0 | |
| Riccardo Patrese | 2 | 0,0,0,0,0,0,0,0,2,0,0,0,0 | ||
| ▲ | Philippe Alliot | 2 | 0,0,0,0,0,0,0,1,0,0,0,0,1 | |
| ▼ | 19 | Ivan Capelli | 1 | 0,0,0,1,0,0,0,0,0,0,0,0,0 |
| ▼ | René Arnoux | 1 | 0,0,1,0,0,0,0,0,0,0,0,0,0 |
| 1 | Williams-Honda | 122 | 7,9,0,6,8,15,15,9,9,15,13,4,12 | |
| 2 | McLaren-TAG | 72 | 13,3,15,0,4,4,0,6,4,1,1,11,10 | |
| 3 | Lotus-Honda | 57 | 0,7,2,9,9,3,7,4,6,2,6,0,2 | |
| 4 | Ferrari | 26 | 3,4,0,7,3,0,0,0,0,0,3,6,0 | |
| 5 | Benetton-Ford | 20 | 2,0,0,0,0,2,1,0,3,7,2,3,0 | |
| 6 | Tyrrell-Ford | 8 | 0,0,0,2,0,1,0,5,0,0,0,0,0 | |
| Arrows-Megatron | 8 | 0,0,3,0,1,0,2,0,1,0,0,1,0 | ||
| 8 | Brabham-BMW | 6 | 0,0,4,0,0,0,0,0,2,0,0,0,0 | |
| 9 | Zakspeed | 2 | 0,2,0,0,0,0,0,0,0,0,0,0,0 | |
| ▲ | Lola-Ford | 2 | 0,0,0,0,0,0,0,1,0,0,0,0,1 | |
| ▼ | 11 | Ligier-Megatron | 1 | 0,0,1,0,0,0,0,0,0,0,0,0,0 |
| ▼ | March-Ford | 1 | 0,0,0,1,0,0,0,0,0,0,0,0,0 |