The very first DCT to succeed in production was the Easidrive automatic transmission released over the 1961 Hillman Minx mid-dimension motor vehicle. This was followed by numerous japanese European tractors from the seventies (working with manual Procedure through one clutch pedal), then the Porsche 962 C racing car in 1985. https://sergioinnnl.blog-a-story.com/14934930/new-step-by-step-map-for-gearbox-auto