In 1991, the McLaren MP4/6 became the last Formula 1 car to win a World Championship with both a V12 engine and a fully manual gearbox. Powered by Honda’s 3.5L RA121E V12, the MP4/6 delivered raw power and high-revving fury, pushing Ayrton Senna to his third and final World Drivers’ Championship. It also earned McLaren the Constructors’ title that year. The car featured a traditional 6-speed H-pattern manual—just as the sport began transitioning to semi-automatic paddle-shift gearboxes and small