1991 Brazilian Grand Prix

The two Modena Lambos missed out in fifth and sixth, with Eric van de Poele over a second slower than Pirro, with Nicola Larini another second further back. Seventh was Pedro Chaves in the Coloni , followed by Olivier Grouillard in the Fondmetal . Grouillard had initially used an interim chassis, with an eye to the team's new car which was still being completed, and was running well until the suspension broke. He was forced to revert to an older chassis, and was unable to match the times of his ...

Ayrton Senna made a perfect start to lead from Nigel Mansell , Riccardo Patrese , Jean Alesi , Gerhard Berger and Alain Prost , building up a lead of three seconds by lap eight. However Mansell was closing and by lap 20 the gap was down to 0.7s. On lap 17 Prost pitted for new tyres, keen to avoid being stuck behind Nelson Piquet 's Benetton . Mansell pitted on lap 26, but the stop was terrible - lasting over 14 seconds. This returned him to the race in fifth place behind Patrese, Alesi and Berge...

After Senna and Patrese had made their stops, Mansell was seven seconds behind the lead McLaren . There seemed no doubt that Senna would be caught but the chance never arose as on lap 50 Mansell had to stop for a new set of tyres after a puncture caused by debris on the track. Unknown to observers, Senna's gearbox was failing, having lost fourth gear and by lap 60 the lead was halved and Mansell had set fastest lap. Yet it was Mansell's gearbox that gave way first, forcing the Williams into a sp...

Senna won 2.9 seconds ahead of Patrese. When he crossed the finish line, he started to scream in celebration of achieving his dream of winning at home. The tremendous struggle of trying to keep the car under control caused him to have muscle cramps and fever. After stopping his car, Senna was almost unable to move on his own. He had to be lifted bodily from the car due to exhaustion and driven to the podium in the medical car. Despite a small fire on the grid and a sticking throttle, Berger clai...