The initial DCT to achieve creation was the Easidrive automatic transmission introduced over the 1961 Hillman Minx mid-dimensions car or truck. This was accompanied by many jap European tractors through the nineteen seventies (applying handbook operation via a single clutch pedal), then the Porsche 962 C racing vehicle in 1985. https://gearbox-auto87418.alltdesign.com/gearbox-auto-things-to-know-before-you-buy-53307748