1983 Formula One season

The 1983 Formula One season was the 34th season of FIA Formula One motor racing. It featured the 1983 FIA Formula One World Championship, which commenced on 13 March, and ended on 15 October after fifteen races. Nelson Piquet won the Drivers' Championship, his second Formula One title and the first to be won by a driver using a turbocharged engine. The Manufacturers' Championship was won by Ferrari.

The season was a four-way battle between Piquet, Renault driver Alain Prost and Ferrari duo René Arnoux and Patrick Tambay. Prost lost a title chance with a technical problem in the final round in South Africa. The fact that Ferrari had two race-winning drivers pushing for the driver's title enabled the team to win the constructors' title in spite of its best driver (Arnoux) finishing only third - a unique feat in Formula One history.

The season also included a single non-championship Formula One race, the Race of Champions, which was held at Brands Hatch and won by defending World Champion Keke Rosberg in a Williams Cosworth. This was to be the last Formula One season to include a non-championship race.

A major change in technical regulations mandated a flat undertray for the cars, with a complete ban on the ground effect technology pioneered by the Lotus 78 in 1977. This was done to reduce downforce and cornering speeds, which were deemed to have reached dangerous levels in 1982, a season in which several violent and fatal accidents occurred.

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