16: 1982 Pontiac Firebird Trans Am
The 1982 model year is especially important for GM F-Body cars. This was the year the cars were redesigned for the new modern era. It was also an important year for the Trans Am, as the new design was featured in the hit TV show Knight Rider. From a design perspective, GM had come a long way with the Firebird (via Car Folio).

The unusual thing about the Firebird is that it was more unique this time around. GM engineers worked diligently to differentiate the car from its Camaro sibling. The end result was a completely revamped product that showcased what GM engineers could do. The design was both controversial and well-received by critics.