The initial DCT to reach production was the Easidrive automatic transmission released on the 1961 Hillman Minx mid-size car or truck. This was accompanied by several japanese European tractors from the seventies (making use of manual operation by using only one clutch pedal), then the Porsche 962 C racing automobile https://rafaelblqsv.ja-blog.com/34232258/the-greatest-guide-to-gearbox-auto