10: Opel GT
This is a sports car that you don’t see often anymore and there are a few reasons for that. The first of which being that the design wasn’t very practical, and most sports car enthusiasts found the car to be a tough proposition. The off-the-line performance wasn’t that great, although the handling of the Opel GT is unmatched (via Car Gurus).
Nevertheless, this is another car that has been seemingly caught up in the bubble. You’ll never get the money you spent on this car back, and that is a problem when it comes to making such a costly investment. Opel isn’t a brand that has earned a lot of loyalty in the sports car segment, and this car should be avoided altogether.