9: Opel GT
You don’t hear much from Opel over in the states these days, but the Opel GT concept raised a few eyebrows. Known as the mini-Corvette, the Opel GT has a lot going for it. The tightly-wound design and interesting curves give the car an authentic sports car look. The model was seemingly close to a production scale although the Opel GT never hit the market. A lot of drivers were left wondering why the company wouldn’t bring the car to production.

Another thing that was a bit odd about the Opel GT was the fact that the front tires were red. There was no reasoning behind this other than a unique look for the car, which would be costly to produce. Most modern drivers aren’t going to splurge on a replacement set of red wheels every time they run over a nail.