Hydra-Matic Transmission

By John Linhardt On March 1st 1941, Cadillac announced the availability of the Hydra-Matic Transmission as an option on all series of their cars. The automatic was not a completely “new” thing that year, as a form of automatic had appeared on Oldsmobile in 1937 thru 1939 and Buick in 1938 on Series 40 only. […]