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Corvette History
The 1953 Corvettes were built by hand and appeared nearly identical to the Motorama car. They were powered by the existing Chevrolet 235cu. In. 6-cylinder engine that was modified with a three-carburettor design and dual exhaust to give it more sports car-like performance. Named the Blue Flame Special, this engine generated 150 horsepower, and it was teamed with a 2-speed Powerglide automatic transmission. This power train, however, did not live up to the performance expectations of sports car buyers. Although sales climbed to 3640 units in 1954, they fell off dramatically to just 700 in 1955 setting off rumours that Corvette might be a short-lived automotive experiment. But Zora Arkus-Duntov had different ideas. Arkus-Duntov, an engineer on the Corvette team since 1953 and a former European road racer, set out to give Corvette the two things it needed most, better performance and better handling. Corvette's evolution into a true sports car began in 1955 when a 265-cu.-in. V8 that generated 195 horsepower was offered; and by the end of the model year, a 3-speed manual transmission was also available. In 1955, driving a prototype V8-powered Corvette, Zora Arkus-Duntov set a new record in the Daytona "Measured Mile" at just over 150 miles per hour. Corvette received its first major styling update in 1956. Changes include an all-new body with "scooped out" sides, outside door handles, roll-up windows and an optional removable hardtop. Corvette got a performance boost to go along with its styling in 1957. The 283-cu.-in. V8 was modified with fuel injection to produce an unprecedented 283 horsepower, and a new 4-speed manual transmission was offered as a $188 option making Corvette one of the first cars in the world to mate a fuel-injected V8 engine with a 4-speed manual gearbox. Corvette lit up the streets in 1958 in more ways than one. The fuel-injected 283-cu.-in. V8 was now producing up to 290 horsepower, and Corvette's new body design featured four headlights.
The 1963 Sting Ray Coupe featured a split rear-window design, but it was replaced with a single-piece rear window in 1964 because owners complained about visibility. Today, a 1963 split-window Coupe is a cherished prize among collectors. The Sting Rays were the automotive success story of the year. Chevrolet had to add a second shift to its St. Louis, Missouri assembly plant to keep up with demand, and dealers reported owners waiting months for their cars to be built. By the end of the model year, Corvette production would surpass the 20,000-unit milestone. The Sting Rays continued the Corvette evolution through the mid-1960s. In 1965, the 396-cu.-in. "Big Block" V8 was available in Corvette. It was rated at 425 horsepower. Four-wheel disc brakes were also made standard, although buyers could choose drum brakes as a cost-delete option while supplies of parts lasted. In 1967, the limited-production L88 Corvette was officially rated at 430 horsepower, although some Corvette historians believe that figure was artificially low. Only 20 of the L88 Corvettes were built. The all-new 1968 Corvette was dramatically different in appearance from any other Corvette. Bearing a striking resemblance to Chevrolet's "Mako Shark II" concept vehicle, it literally changed the way people looked at cars. Along with its bold new look, the 1968 Corvettes introduced hidden windshield wipers and removable T-Tops on Coupe models. In 1968, Corvette production hit a new record of 28,566. Corvette received its most radical styling change in 1968, and this basic body design would continue to evolve for 15 years.
In 1971, a special-purpose "Big Block" V8 was available that produced 425 horsepower. But 1971 was the last year for "gross" horsepower ratings. The industry changed to a "net" rating system that accounted for the exhaust system, vehicle accessories and other components. It provided a truer measure of an engine's performance and is still used today. The Convertible model was dropped at the end of the 1975 model year. The next Corvette Convertible would not be available until 1986. In 1977, Corvette hit the 1/2-million milestone as the 500,000th car rolled off the assembly line. Leather seats were standard for the first time, although buyers could choose cloth as a no-cost option. Production reached 49,213 units. Corvette celebrated its 25th anniversary in 1978 and, in recognition of this event, was selected to be the Official Pace Car of the Indianapolis 500. Two special models were produced for public sale a Pace Car appearance edition and a special Silver Anniversary paint package. In 1979, Corvette production hit 53,807 units a record that still stands today. The 1980s anticipation sales of Corvette remained strong in the early '80s. It was clearly now part of the American fabric, attracting buyers with its rich heritage and dramatic styling. There were no 1983 Corvettes produced for public sale, but 43 pilot models of the new generation Corvette were built in 1983 for testing purposes. Today, one of those 1983 pilots is on display at the Corvette Assembly Plant in Bowling Green, Kentucky. The rest were scrapped. Chevrolet introduced the first all new Corvette since 1968. It featured an all-new body design, a double-wishbone front suspension and five-link independent rear suspension teamed with Goodyear Gatorback unidirectional tires. Inside, the cockpit surrounded the driver and featured advanced electronic instrumentation.
The 1990s ZR-1 roared to life in 1990 with an all-new 375 horsepower LT5 engine under its hood. designed in a co-operative effort between General Motors and Lotus, the LT5's dual overhead cam, 32-valve design made Corvette the talk of the automotive world. To help distinguish the appearance of the ZR-1 from standard Corvette Coupes, it was given an all-new convex rear facia and quad rectangular taillights. All Corvettes received a new cockpit design that included digital readouts and analogue gauges as well as a driver air bag. The maximum horsepower of the standard L98 engine was increased to 250. Corvette received styling refinements for 1991 that included wrap-around-front parking/cornering lamps, new side-panel louvers and a ZR-1 style convex rear facia on all models. To help differentiate the look of theZR-1, its centre high-mounted stop lamp remained on the roof, while it was integrated into the rear facia on both Coupe and Convertible. Corvette performance continued to grow in 1992 with the introduction of the second-generation LT1 putting a 300-horsepower engine back in the standard Corvette. The engine was designated LT1 because it was the first Chevy "Small Block" to surpass the horsepower of the original LT1 in 1970. The Acceleration Slip Regulation (ASR) system and Goodyear GS-C asymmetrical tires were also introduced as standard equipment. ZR-1 received a ZR-1 badge on the sides of its clam shell hood. The one-millionth Corvette was built on July 2, 1992 in Bowling Green, Kentucky. For 1993, LT5 output was boosted to 405 horsepower, and a special 40th Anniversary package was available on all models. Passive Keyless Entry (PKE) was also added as standard equipment. The cockpit of Corvette was transformed for 1994 with a new single-piece instrument panel, a front-passenger air bag, and new door panels. Both the standard and Sport seats were also restyled, and leather seats became standard equipment. The most noticeable change on the 1995 Corvette was the revised gill panel design. This also marked the last year for the ZR-1. Corvette served as the Official 1995 Indianapolis 500 Pace Car. Two distinctive Corvettes are part of the 1996 line-up; the Grand Sport and Collector Edition. Both celebrate the rich heritage of the Corvette, and mark the end of the current style. The new optional LT4 engine is introduced (required on Grand Sport.) For only the fifth time in it's long life, the Corvette has been transformed, delivering levels of performance, handling and comfort that owners of previous Corvettes could only dream about.
With a drag coefficient of 0.29 it is the slipperiest of any mass produced sports car. For the revolutionary changes you have to look under the skin. A new super strong chassis keeps the Corvette strong and rigid, and cut's the noise and vibration down felt within the cockpit, Power comes by way of an all new alloy 5.7-litre V8, dubbed Generation III. With two valves per cylinder, the LS1 puts out 257Kw at 5600rpm, up from the 246Kw of the previous LT1. Torque is a stump pulling 474Nm. According to the figures released by Chevrolet, the new Corvette rushes from zero to 100km/h in 4.7 seconds, and covers the standing quarter mile in 13.3 seconds. At first all cars will be T-tops with convertibles coming on stream in 1998, and a coupe the year after. And get this, Chevrolet is working on a right-hand drive version for approx. 1999 - 2000. Perhaps the price will come down? |