Correct! Alain Prost and Ayrton Senna

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The rivalry originated in 1988, when Senna joined Prost at the McLaren  team. The most notable event during the season between the two occurred during the Portuguese Grand Prix, where Senna tried to block Prost from taking the lead by forcing the Frenchman to run close to the pitwall; Prost managed to edge Senna outwards, taking the lead as they went into the first corner but he remained angered by the Brazilian's dangerous manoeuvre. The rivalry intensified after the 1989 San Marino Grand Prix, where the two drivers had an agreement that neither would get in each other's way to thef irst corner. At the restart, it was Prost this time that got away the better of the two; but Senna forced his way past Prost in the first corner, breaking the pair's agreement at the start of the race, leaving the Frenchman furious with Senna. Senna was suspended for 6 months. 1990 saw the two drivers collide again. Senna led Prost, now in a Ferrari,  in the world drivers' championship. Prost had qualified second for the penultimate race of the season in Suzuka, Japan, and Senna was on pole. Yet this pole position was moved to the other side of the racing line without an explanation. Senna had therefore complained that his side of the grid was dirty, meaning he would get less grip and therefore a slower start compared to Prost who had been moved to the clean side of the grid. The Brazilian's appeal was rejected.

At the start of the race, Prost got the better start of the two; but whilst braking for the first corner, Senna refused to back off and collided with Prost at 160 mph (260 km/h), clinching the title for the Brazilian. On 1 May 1994, Ayrton Senna was killed during the San Marino Grand Prix. Prost was a pallbearer at the Brazilian's funeral.

Speaking four years after the Brazilian's death, Prost told Nigel Roebuck that he had "always refused to speak about him." When Senna died, Prost stated that a part of himself had died also", because their careers had been so bound together.

Senna had also felt the same when Prost had retired at the end of 1993, when he admitted to a close friend that he had realised how much of his motivation had come from fighting with Prost.