1983 British Formula Three Championship

The 1983 British Formula Three Championship was the 33rd season of the British Formula Three Championship, starting at Silverstone on 6 March and concluding at Thruxton on 23 October after 20 races.

The 1983 season is among the most fondly remembered in the history of the championship due to the head-to-head title battle between future Formula One stars Ayrton Senna and Martin Brundle - both driving Toyota-powered Ralt chassis, prepared by West Surrey Racing and Eddie Jordan Racing respectively. Senna built up a commanding advantage by winning the first nine races in succession, but a series of retirements for the Brazilian later in the year allowed Brundle to close the gap. The Brit took the points lead heading into the series finale, but Senna dominated the race to secure the title.

Senna won 12 of the 20 races in the season, establishing a record that wouldn't be surpassed until Jan Magnussen won 14 races in 1994. Both Senna and Brundle stepped up to F1 in 1984, joining Toleman and Tyrrell respectively.

Other notable drivers from the year included future Le Mans winner Davy Jones, BTCC star David Leslie and Senna's future Lotus team-mate Johnny Dumfries. 1983 was also the final season before 'Class B' was established, offering a separate prize for those competing in older cars.

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