He stayed second after the stops but 7 seconds behind Senna, the major change as a result of the stops was that Piquet who did not stop was third and that Berger and Prost had got by Alesi. As Mansell was having difficulty finding a way around Senna, he put out his hand and waved Patrese ahead of him. The order at the end of lap 1 was: Senna, Prost, Mansell, Patrese, Alesi and Berger. Midway through the lap, Schumacher passed Mansell to take third. Patrese won from Senna, Alesi, Martini, Piquet and Schumacher. At the start, it was damp and Senna blasted past Mansell while Patrese messed up again, dropping to sixth.
At the end of the first lap, Mansell led from Berger, Senna, Prost, Alesi and Patrese. Then, Senna spun into the last corner and dropped behind Mansell, Schumacher and Prost. Behind them, on lap 45, Piquet passed de Cesaris for sixth.
Patrese quickly passed Senna to leave him with a frustrated Prost. Le Championnat du Monde de auto moto 1991 est la 42ème édition de cette épreuve.
Two laps later, Prost from third went out with the same problem. On lap 16, Nakajima retired from fourth with transmission failure. No one, however could touch Mansell who won, with Patrese making it a Williams 1–2 ahead of Alesi, the recovering Berger, de Cesaris and Gachot. Every effort has been made to trace the origins of the images. La stagione 1991 del Campionato mondiale di Formula 1 è stata la 42ª nella storia della categoria ad assegnare il Titolo Piloti e la 34ª ad assegnare quello Costruttori.Il primo fu vinto dal brasiliano Ayrton Senna, che divenne quindi Campione del Mondo per la terza volta in carriera, mentre il secondo fu vinto dalla McLaren - Honda, che se lo aggiudicò per il quarto anno di fila. Senna took pole at the Hungaroring near Budapest in Hungary ahead of Patrese, Mansell, Prost, Berger and Alesi. Senna took his fourth win in four ahead of Mansell, Alesi, Moreno, Prost and At the Circuit Gilles Villeneuve in Montreal, the Williams cars were 1–2 in qualifying, Patrese on pole ahead of Mansell, Senna, Prost, Moreno and Berger.
He was out and Senna was World Champion for the third time. He closed in on Prost and the Ferrari pitted on lap 46, with right rear troubles putting him down to seventh. The order was: Berger, Senna, Mansell, Patrese, Prost and Martini. Meanwhile, Alesi passed Moreno and then de Cesaris as Mansell pulled away from Senna. On lap 52, Moreno retired with an engine failure. Berger also spun off twice on the next lap as Senna gestured to the marshals to try to get the race stopped. Modena’s second-place in Montreal was the highlight in an otherwise disappointing season.Eddie Jordan’s 7Up-sponsored team made a major impact in its first Formula 1 season. Senna took pole ahead of Prost, Patrese, Mansell, Piquet and Alesi. Patrese passed Mansell and then both Senna and Alesi had a go at the Englishman with Alesi spinning and dropping back to seventh. At the challenging Suzuka circuit in Japan, the McLarens took 1–2 in qualifying with Berger ahead of Senna, Mansell, Prost, Patrese and Alesi. He was close enough on lap 5 and was side by side with Senna on the next lap but saw yellow flags because of Then, on lap 8, Pierluigi Martini spun off into the wall and his front wing, which separated from his car, was hit by Patrese and got stuck in Patrese's undertray. Alesi was third but on lap 35, his engine expired. A change to the points system in 1991 saw the winning driver now awarded 10 points instead of 9 as previously. Alesi did not last long, his engine failing even before finishing the lap. It was a good year." Soon afterward JJ Lehto passed Martini to take fifth. Moreno passed the struggling Patrese on the next lap. At the start, Berger got away well and Senna blocked Mansell while behind them Patrese got by Prost. At the halfway stage of the season, Senna led the Drivers' Championship with 51 points, with Mansell second on 33, Patrese third on 22 and Prost fourth on 21. At the start, Patrese had problems selecting his gear, and when he did start his car, he was engulfed by the field. At the start, in extremely torrential wet conditions, Patrese lost time and was quickly behind Piquet and Alesi had also got by him and Schumacher. Mansell quickly reeled in Berger and got ahead on lap 20 and proceeded to pull away. Berger then waved him through to see if he could attack Prost. Patrese was third on 48, while Prost and Berger both had 31. A causa del maltempo furono completati solo 14 degli 81 giri totali e fu quindi assegnato metà punteggio Le championnat du monde de Formule 1 1991 est remporté par le Brésilien Ayrton Senna sur une McLaren-Honda.McLaren remporte le championnat du monde des constructeurs.