The all new postwar Futuramic styling that had debuted on the C-body Oldsmobile 98 in 1948 was brought to Oldsmobile's 1949 A-body, which it also shared with Pontiac and Chevrolet. The new name Seventy-Six, with the numbers now spelled out, became Oldsmobile's entry-level model with the discontinuation of the Series 60. Its wheelbase grew to , and the car was only available with the Oldsmobile straight-6 engine.
The straight-8 78 model was retired with the 1949 introduction of the new Oldsmobile overhead-valve Rocket V8 powered 88, which absorbed the 78’s “Futuramic” A-body platform shared with the Seventy-Six.
In its final year, the 1950 Seventy-Six continued to offer the DeLuxe trim package (also available on the station wagon), while the Holiday hardtop coupe (produced by welding a steel roof onto the Seventy-Six convertible)