Lyncar was a Formula One constructor from the United Kingdom. They participated in only 2 grands prix, the 1974 and 1975 British Grands Prix, entering a total of 2 cars. Lyncar's founder Martin Slater had built and raced his own cars in junior formulae before becoming a designer for Lola, Brabham and March. In 1971, Slater built a car to enter the British Formula Atlantic Championship, the first of a series of machines which led to the Lyncar 005 with which McLaren engine-builder and amateur racer John Nicholson won the 1973 and 1974 championships.