The Cooper T43 was a Formula One and Formula Two racing car designed and built by Cooper Car Company for the 1957 Formula One season, first appearing at the 1957 Monaco Grand Prix in a works car for Jack Brabham.
The T43 earned a significant place in motor racing history when Stirling Moss drove a Rob Walker Racing Team T43 to win the 1958 Argentine Grand Prix, the first World Drivers' Championship win for a mid-engined car.
The T43's last appearance in a World Championship event was the 1960 Italian Grand Prix.
Bob Gerard purchased a T43 chassis and fitted it with a Bristol engine.
(key) (results in bold indicate pole position, results in italics indicate fastest lap) ^1 The World Constructors' Championship was not awarded before 1958.