1991 Portuguese Grand Prix

The only change to the driver line-up was that Johnny Herbert was back at Lotus, replacing Michael Bartels , who had failed to qualify in his three outings for the team.

The four drivers to miss out included Tarquini's team-mate Fabrizio Barbazza in fifth position, although he was closer to the pace than in previous events, driving the new AGS JH27 for the first time. Olivier Grouillard could only manage sixth place on this occasion for Fondmetal , his eighth pre-qualifying failure this season, and the Frenchman was sacked by the team after the Grand Prix weekend. Alex Caffi struggled again in the other Footwork in seventh place, his fourth failure in five pre-q...

On Sunday Morning Prost's Ferrari had a rather dramatic blowup in the warmup, and the Frenchman had to start the race in the spare car. The start was very eventful with Patrese getting away well and with Mansell aggressively chopping across the front of Senna. Unimpressed, he tried to retake Mansell going into the first turn but Nigel held his line and then proceeded to sweep underneath Berger to grab second at the second corner. After lap 1 the order was Patrese, Mansell, Berger, Senna, and Ale...

Mansell emerged in 17th place and started a charge through the field; he was up to sixth when he was finally shown the black disqualification flag on lap 51. He would, however, keep the fastest lap of the race, set on lap 43. The incident left Patrese comfortably in the lead from Berger and Senna, and Senna went second when Berger's engine blew on lap 37, he was followed out of the race by Prost's Ferrari, which also decided it had enough. On lap 40 the order was Patrese, Senna, Alesi, Martini, ...