The Corvette C4 was the fourth Corvette model. It was made from 1984 to 1996. There were no 1983 Corvettes, except for a few made by Chevrolet that were used for testing. The C4 was the first time the Corvette was totally new. The C4 used many of the same engines as the C3 Corvette, but the body was totally new. The Corvette was made as a convertible again starting in 1986. 1986 was also the year the Corvette was a pace car for the Indianapolis 500 car race. Throughout the C4's life, new engines and transmissions were used. The C4 ZR-1 was a special edition of the C4, which was much faster than the normal C4. It was made from 1990 to 1995.