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Firebird II. The second concept car, the Firebird II of 1956, was designed as a four-seat, family car. It has a low and wide design with two large air intakes at the front, a high bubble canopy top, and a vertical tail fin. Its exterior bodywork is made entirely of titanium. [7] The engine output is 200 hp (150 kW).
The Pontiac Bonneville Special is a concept car unveiled at the General Motors Motorama in 1954, the first two-seat sports car prototype the division had ever produced. Conceived by designer Harley J. Earl and hand-built by Homer C. LaGassey Jr. and Paul Gilland, the Special is a grand touring sport coupé that incorporated innovative styling ...
GM B platform: 1 Full-size car, upper trim of Catalina (1964) and GTO GTO: 1964 2006 GM A platform GM X platform GM V platform: 5 Muscle car, later compact car Executive: 1966 1970 GM B platform: 1 Middle range full-size car Firebird: 1967 2002 GM F platform: 4 Pony car, muscle car Custom S: 1969 1969 1 One year only replacement for Tempest ...
The "1959" Motorama was held from October 16–22, 1958, at the Waldorf Astoria, New York City, before moving on to Boston. Shown in these two east coast cities were General Motors Firebird III and the Cadillac Cyclone. The final Motorama show was held in 1961 in New York, San Francisco and Los Angeles.
The 1967 model year saw the introduction of the Pontiac Firebird pony car, a variant of the Chevrolet Camaro. Intermediate-sized cars (Tempest, LeMans, GTO) were mildly face-lifted, but all full-size cars and GTO lost their Tri-Power engine option, though they did get a larger 400 cu in (6.6 L) V8 that replaced the previous 389.
1954 Pontiac Bonneville Special. The Bonneville name first appeared in 1954 on a pair of bubble-topped GM Motorama concept cars called the Bonneville Special, sharing an appearance with the Chevrolet Corvette. It was also the beginning of a new tradition of Pontiac vehicles using French words for model names.
From 1952 to 1954 two compression ratios were specified, 6.8:1 with synchromesh (manual) transmission, and 7.7:1 with Hydramatic automatic transmission. [4] The engine had a remarkably low idle speed of 450 rpm with standard transmission and 375 rpm (while in drive) for the automatic; [ 5 ] a modern engine is usually tuned to a minimum 600-700 rpm.
In the third-generation GT/GMT-305, the air intake is arranged axially with the turboshafts, which share a common horizontal axis.The single-stage rotary compressor draws air at atmospheric conditions through the intake and expels compressed air out radially into the side compartments, where the rotating drum-shaped regenerators preheat the compressed air using heat extracted from the exhaust ...