1986 Formula One World Championship 1986 Formula One World Championship The 1986 FIA Formula One World Championship was the 40th season of FIA Formula One motor racing. It featured the 1986 Formula One World Championship for Drivers and the 1986 Formula One World Championship for Manufacturers, both of which commenced on 23 March and ended on 26 October after sixteen races. The Drivers' Championship was won by Alain Prost, and the Manufacturers' Championship was won by Williams. Prost was the first driver to win back-to-back Drivers' Championships since Jack Brabham in 1959 and 1960. The 1986 championship culminated in a battle between Williams drivers Nigel
1991 Formula One World Championship 1991 Formula One World Championship The 1991 FIA Formula One World Championship was the 45th season of FIA Formula One motor racing. It featured the 1991 FIA Formula One World Championship, which commenced on 10 March 1991 and ended on 3 November after sixteen races. Ayrton Senna won his third and last Drivers' World Championship and McLaren-Honda won their fourth consecutive Constructors' Championship. Senna won seven of the sixteen races; his main challenger for the title was Nigel Mansell, who won five races in his first season back at Williams. Senna's fierce rival Alain Prost failed to win a race