1954 The Belvedere replaced the Cranbrook as the top-line offering for 1954. Now, a separate model instead of just a two-door hardtop, the Belvedere was also available as a
convertible, two-door
station wagon, and four-door
sedan. The two-door hardtop version was now called the "Sport Coupe." The 1954 Belvederes featured full-length rocker sill moldings. 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 George Huebner in a public-relations campaign took a Belvedere and had a
Chrysler turbine engine fitted instead of the standard gasoline engine, and was driven across the U.S. The 1956 models came with more V8 power upgrades: options were the 180 bhp V8, 187 bhp V8, 200 bhp 277 cid V8, and for the Fury, a 240 bhp V8. Tail fins featured for the first time, in what Exner described as the "Forward Look." Standard on all body styles except the convertible was the "Powerflow 6" L-head engine. The convertible was only V8 powered and V8s were available in other Belvederes with an optional "Fury" version as well as a "High-Performance PowerPAC" at extra cost. A manual transmission was standard with the push-button two-speed
PowerFlite optional and the push-button three-speed
TorqueFlite automatic also optional on V8 cars. The front suspension introduced Chrysler's Torsion-Aire
Torsion bar suspension shared with all Chrysler products starting in 1957. In 1957, Chrysler products offered a choice of either single or dual headlights. Plymouth installed the headlights in a facia that accommodated dual headlights while offering both single and dual lamps. This appearance can be seen with front turn signal lamps installed inboard, next to the headlight, while vehicles installed with dual headlights offered a concealed turn signal above the headlights in the headlight alcove. The Belvedere would once again return as a top-level trim for 1958 for the last time. Styling was a continuation of the 1957 models. A big-block "B" V8 with dual four-barrel carburetors—dubbed "
Golden Commando"—was optional on all models. For 1959, the Fury became the top range with a full array of sedans and coupes, and the Belvedere became the middle range. The Savoy became the least expensive model, and the Plaza was discontinued. The convertible was only available in the Belvedere model between 1956 and 1958. The 1957–58 Belvedere two-door hardtop gained notoriety from the 1983 movie
Christine based on the novel by Stephen King. In the opening scene, in which the title is set as "Detroit, 1957," Christine appears near the end of the assembly line as a lone bright red car in a long line of Buckskin Beige Furys being built for the new model year (1958). (In the novel, it is revealed that her first owner, Roland Lebay, had ordered her with custom paint, as the standard 1958 Fury came only in beige.) For the movie, Christine was painted "toreador red" with an "iceberg white" top. File:Plymouth Belvedere 4-door Saloon (1957) - 21069462986.jpg|1957 Plymouth Belvedere 4-Door Sedan File:Plymouth Belvedere, Belgian p3.JPG|1958 Plymouth Belvedere 4-door sedan File:Plymouth Belvedere, Bj. 1959 (Foto Sp r).JPG|1959 Plymouth Belvedere 2-door hardtop File:1959 Plymouth Belvedere 4-door Hardtop (rear).JPG|1959 Plymouth Belvedere 4-door hardtop
1960–1961 Starting in 1960, Belvederes got a brand-new standard
inline six-cylinder engine replacing the venerable valve-in-block "flathead" six. Colloquially known as the
Slant Six, it
displaced , featured overhead valves, and a block that was inclined 30 degrees to the right to permit a lower hood line with maximum displacement. This engine used a single-barrel Holley carburetor and became known for its extremely rugged construction, exceptional reliability, and longevity. The V8 engines continued to be optionally available, in displacements of and . Unit body construction was introduced throughout the line, though it appeared on certain Plymouths in earlier years such as the 1953 hardtop coupe. This eliminated the
frame and was advertised as Unibody. Under Chrysler president
William Newberg, Virgil Exner's styling team was encouraged to go "over the top" with distinctive styling, leading the 1960 models to be popularly dubbed the "jukebox on wheels" and the 1961 models were not well-received and "unfairly maligned just for being different... the cleaner, finless look was certainly on the way in, and today the Belvedere looks distinctive." Despite being good cars in performance, handling, modest weight, and appealing interiors, sales suffered. Plymouth yielded third place in U.S. sales to the 1960
Ramblers. == Intermediate series ==