Plymouth Belvedere is a series of American automobile models made by Chrysler from 1954 to 1970 that were marketed under the Plymouth brand.
The Belvedere name was first used for a new hardtop body style in the Plymouth Cranbrook line for the 1951 model year. In 1954 the Belvedere replaced the Cranbrook as the top trim and became a full model line with sedans, station wagons and convertible body styles. The Belvedere continued as Plymouth's full-sized car until 1965, when it became an intermediate, and was replaced after the 1970 model year by the Satellite, a name originally used for the top-trim level Belvederes.
Belvedere full-size series
Second generation (1955–1956)
All Plymouths were treated to a major overhaul for the 1955 model year. This was the first year of Chrysler Stylist Virgil Exner's "Forward Look." The Belvedere returned as top-of-the-line.
For 1956, Plymouth styling evolved from that of the 1955s. Most notable would be the introduction of the first push-button automatic transmission to appear in an American automobile, and a more dramatic rear-end treatment highlighted by a pair of rakish tail-fins. In early 1956, the Fury joined the Belvedere line as a special-edition high-performance coupe. Belvedere remained the top full-line series through 1958. In 1956, Plymouth added seat belts.
In 1956, Chrysler's chief engineer in a public relations campaign took a Belvedere and had a turbine engine fitted instead of the standard gasoline engine, and was driven across the US.
Source: Wikipedia