The 1st DCT to reach manufacturing was the Easidrive automatic transmission launched about the 1961 Hillman Minx mid-size motor vehicle. This was followed by different eastern European tractors in the nineteen seventies (applying manual Procedure via only one clutch pedal), then the Porsche 962 C racing car in 1985. So, https://shanethwju.bloguetechno.com/the-definitive-guide-to-gearbox-auto-68913278