Automobil-Weltmeisterschaft
Saison | Portuguese Grand Prix Estoril (Autódromo Fernanda Pires da Silva) |
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| Schnellste Rennrunde | ||||||||
| Pos | Nr | Fahrer | Nat | Fahrzeug | Team | in Rnd | Zeit | km/h |
| 1 | 28 | Gerhard Berger |  |
Ferrari | Scuderia Ferrari SpA SEFAC | 49 | 1:18.986 | 198.263 |
| 2 | 27 | Nigel Mansell |  |
Ferrari | Scuderia Ferrari SpA SEFAC | 44 | 1:19.047 | 198.110 |
| 3 | 2 | Alain Prost |  |
McLaren Honda | Honda Marlboro McLaren | 48 | 1:19.385 | 197.266 |
| 4 | 1 | Ayrton Senna |  |
McLaren Honda | Honda Marlboro McLaren | 47 | 1:19.490 | 197.006 |
| 5 | 5 | Thierry Boutsen |  |
Williams Renault | Canon Williams Team | 38 | 1:19.575 | 196.795 |
| 6 | 6 | Riccardo Patrese |  |
Williams Renault | Canon Williams Team | 46 | 1:19.796 | 196.250 |
| 7 | 15 | Mauricio Gugelmin | |
March Judd | Leyton House March Racing Team | 69 | 1:20.571 | 194.363 |
| 8 | 30 | Philippe Alliot | |
Lola Lamborghini | Equipe Larrousse | 33 | 1:20.697 | 194.059 |
| 9 | 19 | Alessandro Nannini | |
Benetton Ford Cosworth | Benetton Formula Ltd | 43 | 1:20.722 | 193.999 |
| 10 | 7 | Martin Brundle | |
Brabham Judd | Motor Racing Developments | 50 | 1:21.167 | 192.936 |
| 11 | 23 | Pierluigi Martini | |
Minardi Ford Cosworth | Minardi F1 Team | 34 | 1:21.170 | 192.928 |
| 12 | 36 | Stefan Johansson |  |
Onyx Ford Cosworth | Moneytron Onyx Formula One | 45 | 1:21.224 | 192.800 |
| 13 | 21 | Alex Caffi | |
Dallara Ford Cosworth | BMS Scuderia Italia | 33 | 1:21.300 | 192.620 |
| 14 | 8 | Stefano Modena | |
Brabham Judd | Motor Racing Developments | 64 | 1:21.451 | 192.263 |
| 15 | 3 | Jonathan Palmer | |
Tyrrell Ford Cosworth | Tyrrell Racing Organisation | 34 | 1:21.562 | 192.001 |
| 16 | 25 | René Arnoux | |
Ligier Ford Cosworth | Ligier Loto | 63 | 1:21.603 | 191.905 |
| 17 | 29 | Michele Alboreto | |
Lola Lamborghini | Equipe Larrousse | 56 | 1:21.756 | 191.546 |
| 18 | 12 | Satoru Nakajima |  |
Lotus Judd | Camel Team Lotus | 39 | 1:21.794 | 191.457 |
| 19 | 24 | Luis Perez-Sala |  |
Minardi Ford Cosworth | Minardi F1 Team | 60 | 1:22.114 | 190.710 |
| 20 | 11 | Nelson Piquet | |
Lotus Judd | Camel Team Lotus | 22 | 1:22.356 | 190.150 |
| 21 | 16 | Ivan Capelli | |
March Judd | Leyton House March Racing Team | 18 | 1:22.873 | 188.964 |
| 22 | 9 | Derek Warwick | |
Arrows Ford Cosworth | Arrows Grand Prix International | 27 | 1:22.926 | 188.843 |
| 23 | 22 | Andrea de Cesaris | |
Dallara Ford Cosworth | BMS Scuderia Italia | 4 | 1:23.592 | 187.338 |
| 24 | 10 | Eddie Cheever |  |
Arrows Ford Cosworth | Arrows Grand Prix International | 7 | 1:23.732 | 187.025 |
| 25 | 20 | Emanuele Pirro | |
Benetton Ford Cosworth | Benetton Formula Ltd | 3 | 1:24.080 | 186.251 |
| 26 | 31 | Roberto Moreno | |
Coloni Ford Cosworth | Coloni SpA | 10 | 1:25.411 | 183.349 |