6. 1985 Chevrolet Camaro Z28 IROC-Z
What hasn’t been said about the IROC-Z? A car that is as infamous as it is famous, 1985 was the first year the IROC-Z package was available on the Camaro Z28. So successful and popular was this option package that in subsequent years it became standard on all Z28 Camaros. Available with a 215 hp V8 and unidirectional tires, even if it has since become the butt of many jokes, the IROC was a serious machine in 1985.