19. 1985 Camaro IROC
The third-generation Camaro was most definitely a well-received and popular car. Still, after a while, buyers wanted more performance and power. So Chevrolet delivered it in the form of the legendary IROC-Z version. Introduced in 1985, the IROC-Z was kind of a tribute model to the Chevrolet-sponsored International Race of Champions (IROC) racing series. However, it was more than just an appearance package and a cool name (via Motor Trend).
Under the hood was a 350 V8 with 225 HP in early versions and 245 HP in later versions. Buyers could opt for manual or automatic, and the suspension was tuned as well as steering. Chevrolet even offered a cool-looking convertible, the first Camaro ragtop in 18 years. The IROC-Z proved to be a very popular and influential muscle car that finally brought some actual performance to Chevrolet buyers.