Some cars with CVT transmissions have a handbook manner that permits the motive force to shift gears. However, in standard driving problems, the transmission will shift mechanically. The CVT gearbox, and variations thereof, has existed since the dawn with the motorcar, but it was the introduction on the Variomatic gearbox https://gearbox-cvt93680.bloguetechno.com/a-simple-key-for-gearbox-cvt-unveiled-67846179