In 1985, the IROC (International Race of Champions) league began using Camaros for the cars in the races. In honor of these IROC Camaros made to race, Chevrolet revealed the "IROC-Z Camaro". The IROC Camaros had special decals on the sides of the car to let you know that the person driving had a car with only one real purpose; to race. However, the cars had only a few modifications. The decals, and the availability of two engines, the 305ci (5.0 Litre) engine, and the 350ci (5.7 Litre) engine. Notice that there was no V-6 in the picture!! That was one of the main features of the IROC Camaros. However, in 1990, the IROC Race League stopped using Camaros. Therefore, the IROC-Z Camaros stopped being produced. This picture is of a 1988 Chevrolet Camaro IROC-Z. This was one of my favorite IROC Camaros.