Biggest mistake GM ever made was dropping it. Second biggest was the styling of the last generation Camaro/Firebird. Unfortunately, the concept Camaro, while mercifully not as ugly as the last generation, looks like an old Dodge Challenger. Also has definite Mustang styling cues. Here's a hint GM. Since you obviously can't design a decent looking car, just drag out some old blueprints from 1969/70 and replicate those Camaros with modern mechanicals. Worked for BMW with the MiniCooper.