The Fourth Generation C4 Corvette Began in March 1983

  The fourth generation Vette began production in March 1983 as a 1984 model. The 1983 model year was skipped

due to production problems, although 44 prototype 1983 models were completed. All 44 1983 model year prototypes assembled were crushed except for one, the 23rd produced, which is displayed at the National Corvette Museum in Bowling Green, Kentucky. Corvette  C4 production began in March 1983 as a 1984 model, and ended in 1996.

  This first year model of the C4 carried over the L83 engine from the previous, 3rd generation Corvette. The L83 engine had a unique fuel delivery method dubbed "Crossfire", a dual throttle body injection system. With the first major body, chassis and suspension change since 1963, the new C4 coupe incorporated a rear glass hatch for much improved cargo access, all new brakes with aluminum calipers, an all aluminum frame and suspension for weight savings and rigidity, and the first one piece targa top with no center reinforcement. The Corvette C4 came standard with an electronic dashboard with digital liquid crystal displays for the speedometer and tachometer. The 1984 C4 was a complete and total redesign except for its engine, and the emphasis was on handling with the introduction of the front transverse composite leaf spring, still used today on new Corvettes. This handling focus came with the penalty of a harsh, uncompromising ride in the 1984 model.

  Between 1984 and 1988, the Corvette utilized an unusual "4 plus 3" transmission a 4-speed manual coupled to an automatic overdrive on the top three gears. It was designed to help the Corvette meet U.S. fuel economy standards. The transmission was problematic and was eventually replaced by a much more modern and satisfactory ZF 6 speed manual gearbox in 1989. This new transmission was also the first to feature Computer Aided Gear Selection, CAGS, which used a solenoid to lock out 2nd gear during low speed and or low throttle driving conditions. This allowed the Corvette to maintain EPA fuel economy ratings high enough to avoid the "gas guzzler" tax. Beginning in 1985, the 230 horsepower, L98 engine with tuned port fuel injection was the standard engine.