1986 Formula One World Championship Grand Prix, but was classified as he completed over 90% of the race distance. 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
Alfa Romeo in Formula One cars. In the early 1970s, Alfa provided Formula One support for their works driver Andrea de Adamich, supplying adapted versions of their 3-litre V8 engine from the Alfa Romeo Tipo 33/3 sports car to power Adamich's McLaren () and March () entries. None of these engine combinations scored championship points. In the mid-1970s, Alfa engineer Carlo Chiti designed a flat-12 engine to replace the T33 V8, which achieved some success in taking the 1975 World Sportscar Championship. Bernie Ecclestone, then owner of the Brabham Formula One team, persuaded Alfa Romeo to supply this engine free for the 1976 Formula One