The very first DCT to succeed in output was the Easidrive automatic transmission launched on the 1961 Hillman Minx mid-dimension auto. This was followed by different eastern European tractors from the seventies (using guide Procedure by using just one clutch pedal), then the Porsche 962 C racing auto in 1985. https://jeffreymrssq.blogdeazar.com/34312285/gearbox-auto-for-dummies