The initial DCT to reach production was the Easidrive automatic transmission released to the 1961 Hillman Minx mid-measurement motor vehicle. This was accompanied by several japanese European tractors with the nineteen seventies (using guide Procedure via a single clutch pedal), then the Porsche 962 C racing motor vehicle in 1985. https://gearboxauto32952.tribunablog.com/the-greatest-guide-to-gearbox-auto-48492183