The main DCT to reach creation was the Easidrive automatic transmission introduced to the 1961 Hillman Minx mid-size car or truck. This was followed by many japanese European tractors with the 1970s (working with manual Procedure via just one clutch pedal), then the Porsche 962 C racing auto in 1985. https://gearboxauto41738.snack-blog.com/34114436/a-review-of-gearbox-auto