Most cars and trucks utilize a "P–R–N–D–L" structure for that gear selector, which includes the following positions:[33] The final Motors Hydra-Matic became the very first mass-generated automatic transmission next its introduction in 1939 (1940 model year). Offered as a possibility in vehicles including the Oldsmobile Series 60 and Cadillac Sixty https://keeganscimp.activosblog.com/33116701/gearbox-auto-an-overview