What Was the Final US-Market Car with a Four-Speed Transmission?
Lloyds Auctions - Oldsmobile was the first manufacturer to offer an automatic transmission; the Hydra-Matic, which was fitted to this car along with the 237c.i (3.9-litre) 6-cylinder engine delivering modern car refinement,
Automatic Transmission Development History
OL302 1957-1960 Oldsmobile 371/394 to Chevy Automatic Transmission (ex — Speed Gems
Inside the 1940 GM Hydra-Matic, The First Modern Automatic Transmission - Mac's Motor City GarageMac's Motor City Garage
The Oldsmobile automatic safety transmission operated by the Stock Photo - Alamy
Complete Auto Transmissions for Oldsmobile for sale | eBay
CC For Sale: 1989 Oldsmobile Cutlass Supreme – It Has A Stick! - Curbside Classic
1937 Ad Oldsmobile Woman Driving Automatic Transmission - ORIGINAL FTT – Period Paper Historic Art LLC
Selling the First Successful Automatic: GM's Hydra-Matic
Basin Automatic Transmission - Since Cadillac and Oldsmobile introduced the HydraMatic in 1939, automatic transmissions have been widely available to drivers. Keep yours in good condition by following the manufacturer's recommended schedule
Remember That Time When Oldsmobile Introduced the World's First Automatic Transmission?
The Oldsmobile automatic safety transmission operated by the short lever shown on the steering column. - NYPL Digital Collections
Drive in a 1948 Oldsmobile - YouTube
When Hydra-Matic was new - General Discussion - Car Talk Community
Video: GM Pitches Hydra-Matic Drive in the 1948 Oldsmobile - Mac's Motor City GarageMac's Motor City Garage