The 1991 Hungarian Grand Prix was a Formula One motor race held at Hungaroring on 11 August 1991. It was the tenth race of the 1991 Formula One World Championship. The 77-lap race was won from pole position by Ayrton Senna, driving a McLaren-Honda, with the Williams-Renaults of Nigel Mansell and Riccardo Patrese second and third respectively.

Qualifying Pre-qualifying report In the Friday morning pre-qualifying session, a Brabham topped the time sheets for the second Grand Prix in succession. However, this time it was Mark Blundell who was fastest, over 1.4 seconds faster than his team-mate Martin Brundle in second. Third was Olivier Grouillard for Fondmetal, the third time the Frenchman had pre-qualified this season. The fourth pre-qualifier was Michele Alboreto in the Footwork.

The four entrants who failed to pre-qualify were, unusually, within two seconds of the slowest pre-qualifier. Fifth was Gabriele Tarquini in the AGS, less than two tenths of a second slower than Alboreto. Alex Caffi was sixth in the other Footwork, 1.4 seconds behind Tarquini. Just a tenth further back was the other AGS of Fabrizio Barbazza, who was only two tenths faster than the Coloni of Pedro Chaves. It was the Portuguese driver's tenth failure to pre-qualify from ten attempts this season.

Pre-qualifying classification Pos No Driver Constructor Time Gap 1 8 Mark Blundell Brabham-Yamaha 1:22.290 — 2 7 Martin Brundle Brabham-Yamaha 1:23.716 +1.426 3 14 Olivier Grouillard Fondmetal-Ford 1:24.816 +2.526 4 9 Michele Alboreto Footwork-Ford 1:25.045 +2.755 5 17 Gabriele Tarquini AGS-Ford 1:25.230 +2.940 6 10 Alex Caffi Footwork-Ford 1:26.637 +4.347 7 18 Fabrizio Barbazza AGS-Ford 1:26.740 +4.450 8 31 Pedro Chaves Coloni-Ford 1:26.945 +4.655

Qualifying report Nigel Mansell and Williams were on a roll as Formula One arrived in Hungary, while Ayrton Senna and Alain Prost were ordered by FISA to work out their differences following their confrontation in the German Grand Prix. Senna was also angry with his McLaren team after he had run out of fuel in the two previous races, losing valuable points to Mansell. During the practice session, McLaren made the first test for the semi-automatic gearbox on their car. Senna proceeded to dominate qualifying, taking pole by over a second from Riccardo Patrese, Mansell, Prost, Gerhard Berger, Jean Alesi, Emanuele Pirro, Stefano Modena, Ivan Capelli, and Martin Brundle.

Qualifying classification Pos No Driver Constructor Q1 Q2 Gap 1 1 Ayrton Senna McLaren-Honda 1:18.549 1:16.147 — 2 6 Riccardo Patrese Williams-Renault 1:20.103 1:17.379 +1.232 3 5 Nigel Mansell Williams-Renault 1:19.818 1:17.389 +1.242 4 27 Alain Prost Ferrari 1:19.326 1:17.690 +1.543 5 2 Gerhard Berger McLaren-Honda 1:18.238 1:17.705 +1.558 6 28 Jean Alesi Ferrari 1:19.552 1:18.410 +2.263 7 21 Emanuele Pirro Dallara-Judd 1:21.751 1:19.334 +3.187 8 4 Stefano Modena Tyrrell-Honda 1:20.488 1:19.748 +3.601 9 16 Ivan Capelli Leyton House-Ilmor 1:21.068 1:19.794 +3.647 10 7 Martin Brundle Brabham-Yamaha 1:21.345 1:19.976 +3.829 11 20 Nelson Piquet Benetton-Ford 1:21.542 1:19.984 +3.837 12 22 JJ Lehto Dallara-Judd 1:21.991 1:20.014 +3.867 13 15 Maurício Gugelmin Leyton House-Ilmor 1:21.549 1:20.024 +3.877 14 3 Satoru Nakajima Tyrrell-Honda 1:22.992 1:20.565 +4.418 15 19 Roberto Moreno Benetton-Ford 1:22.077 1:20.584 +4.437 16 32 Bertrand Gachot Jordan-Ford 1:21.884 1:20.655 +4.508 17 33 Andrea de Cesaris Jordan-Ford 1:22.143 1:20.805 +4.658 18 23 Pierluigi Martini Minardi-Ferrari 1:22.429 1:20.823 +4.676 19 25 Thierry Boutsen Ligier-Lamborghini 1:22.408 1:20.870 +4.723 20 8 Mark Blundell Brabham-Yamaha 1:21.125 1:20.954 +4.807 21 29 Éric Bernard Lola-Ford 1:22.680 1:21.267 +5.120 22 30 Aguri Suzuki Lola-Ford 1:22.762 1:21.601 +5.454 23 24 Gianni Morbidelli Minardi-Ferrari 1:23.201 1:21.654 +5.507 24 34 Nicola Larini Lambo-Lamborghini 1:24.316 1:21.896 +5.749 25 26 Érik Comas Ligier-Lamborghini 1:24.464 1:22.258 +6.111 26 11 Mika Häkkinen Lotus-Judd 1:25.224 1:22.335 +6.188 27 14 Olivier Grouillard Fondmetal-Ford 1:23.593 1:22.438 +6.291 28 9 Michele Alboreto Footwork-Ford 1:24.593 1:22.521 +6.374 29 35 Eric van de Poele Lambo-Lamborghini 1:27.339 1:23.162 +7.015 30 12 Michael Bartels Lotus-Judd 1:24.746 1:23.248 +7.101

Race Race report At the start, Senna and Patrese both got away well, but Senna managed to keep the lead, with Mansell, Prost, Berger, and Alesi rounding out the top six. Mansell followed and hounded his teammate, but Senna was unable to pull out a significant gap. Meanwhile, Prost's day ended early with an engine failure, just adding to the misery that was the 1991 season for the three-time champion. Mansell eventually got past Patrese and set off after Senna, but on a track that is not conducive to passing, he had to settle for second. Senna duly won from Mansell, Patrese, Berger, Alesi, and Capelli. Senna now led the world championship by 12 points as the teams packed up and headed to Belgium. Senna dedicated this victory to the late Soichiro Honda, founder of Honda, who died days before the Grand Prix weekend.

Race classification Pos No Driver Constructor Laps Time/Retired Grid Points 1 1 Ayrton Senna McLaren-Honda 77 1:49:12.796 1 10 2 5 Nigel Mansell Williams-Renault 77 + 4.599 3 6 3 6 Riccardo Patrese Williams-Renault 77 + 15.594 2 4 4 2 Gerhard Berger McLaren-Honda 77 + 21.856 5 3 5 28 Jean Alesi Ferrari 77 + 31.389 6 2 6 16 Ivan Capelli Leyton House-Ilmor 76 + 1 lap 9 1 7 33 Andrea de Cesaris Jordan-Ford 76 + 1 lap 17 8 19 Roberto Moreno Benetton-Ford 76 + 1 lap 15 9 32 Bertrand Gachot Jordan-Ford 76 + 1 lap 16 10 26 Érik Comas Ligier-Lamborghini 75 + 2 laps 25 11 15 Maurício Gugelmin Leyton House-Ilmor 75 + 2 laps 13 12 4 Stefano Modena Tyrrell-Honda 75 + 2 laps 8 13 24 Gianni Morbidelli Minardi-Ferrari 75 + 2 laps 23 14 11 Mika Häkkinen Lotus-Judd 74 + 3 laps 26 15 3 Satoru Nakajima Tyrrell-Honda 74 + 3 laps 14 16 34 Nicola Larini Lambo-Lamborghini 74 + 3 laps 24 17 25 Thierry Boutsen Ligier-Lamborghini 71 Engine 19 23 Pierluigi Martini Minardi-Ferrari 65 Engine 18 8 Mark Blundell Brabham-Yamaha 62 Tyre 20 7 Martin Brundle Brabham-Yamaha 59 Physical 10 22 JJ Lehto Dallara-Judd 49 Engine 12 20 Nelson Piquet Benetton-Ford 38 Gearbox 11 29 Éric Bernard Lola-Ford 38 Engine 21 30 Aguri Suzuki Lola-Ford 38 Engine 22 21 Emanuele Pirro Dallara-Judd 37 Engine 7 27 Alain Prost Ferrari 28 Engine 4 14 Olivier Grouillard Fondmetal-Ford 9 Michele Alboreto Footwork-Ford 35 Eric van de Poele Lambo-Lamborghini 12 Michael Bartels Lotus-Judd 17 Gabriele Tarquini AGS-Ford 10 Alex Caffi Footwork-Ford 18 Fabrizio Barbazza AGS-Ford 31 Pedro Chaves Coloni-Ford

Championship standings after the race

Drivers' Championship standings Pos Driver Points 1 Ayrton Senna 61 2 Nigel Mansell 49 3 Riccardo Patrese 32 1 4 Gerhard Berger 22 1 5 Alain Prost 21Source:

Constructors' Championship standings Pos Constructor Points 1 1 McLaren-Honda 83 1 2 Williams-Renault 81 3 Ferrari 35 4 Benetton-Ford 23 5 Jordan-Ford 13Source:

References