15: Pontiac GTO
The GTO had a lot that made it stand out, from the powerful engine to the styling. But the GTO in a lot of aspects was more hype than performance, and this was a letdown. The GTO had a lot of performance advances at the time, but these fell in comparison to the other cars that were on the market at the time. The resale value of the GTO is tremendous, but when you look at it the car is lacking in a lot of places.
There was room for improvement both in terms of interior quality and features, and that made the GTO a notable exception. The car has had a long track record for being one of the most iconic muscle cars on the road, but every car has some shortcomings. The GTO wasn’t exempt from this either.