Ayrton Senna won the 1993 Australian Grand Prix which was his 41st and last career victory in his last race for McLaren, where he won all of his three drivers' championship while it was also the last F1 race for four time world champion Alain Prost.

Japanese GP was the decisive championship race between Senna and Prost, who were driving for McLaren Honda that year. Their car MP4-4 was a class of the field and the duo Senna Prost won 15 of 16 races in 1988.

Alain Prost won his 51st and final F1 race on this day in 1993, after his team mate Hill had a puncture in a penultimate lap.

On this day in 1993 Ayrton Senna produced one of his finest laps in his racing career by overtaking four drivers in the wet conditions in Donington Park to take a dominant victory at 1993 European GP.

Three Formula 1 drivers became champions od 21st October - Niki Lauda (1984), Ayrton Senna (1990) and Kimi Raikkonen (2007).

Ayrton Senna won in Monaco for the fifth time on this day in 1992 when he halted Mansell's record of five wins at the start of the 1992 F1 season, which will be equaled by Michael Schumacher in 2004 but also stopped in the same race.

Alain Prost, Ayrton Senna and Michael Schumacher have been standing together on a podium on this day in 1993 at the Spanish GP in Barcelona.

Ayrton Senna has won the third and final F1 drivers' championship on this day in 1991 after beating Nigel Mansell in Williams at Suzuka, who was his only opponent in the fight for the title.

Ayrton Senna’s team-mate in British Formula 3 Martin Brundle recalled his personality on and off the track, describing him as a contradictory character because he was a completely different person off the track.

On October 22nd Fernando Alonso (2006) and Alain Prost (1989) won drivers' championship