4: Chevrolet SSR
What was essentially a modern day El Camino, the SSR was a sports car and a truck fused together. The unique 1960s styling of the thing made it look different than anything else on the road at the time. This was more of a halo project for GM to get more people into the showrooms, but still the SSR is indeed a beautiful car that had the performance behind it to match (via The Truth About Cars).
The Corvette-derived V8 engine gave the SSR a serious amount of performance. The truck bed wasn’t very usable and that caused frustration for many consumers. One big problem was the tonneau cover on the bed of the truck. Other than that, the SSR was a unique sport truck that took a classic design and made it better.