Check out these concept cars that dared to push the limits of automotive design. They may never have hit the streets, but ...

These are just a few examples of weird and wonderful concept cars. Now this is a big car. This hybrid car could change from an eight-seater family wagon to a two-door three-seater in just seconds.

GM has crafted some radically cool concept cars that should have made it to production, but unfortunately fell short.

Another quirky concept, the Track’ster is Kia’s ... a 4.5-liter V8 that makes 276 hp. While strange that this car was on display in the Infiniti stand, the Q29 sure is interesting looking ...

This is apparently a new Mercedes-Benz concept car, and judging by this gallery ... but this is such a strange and surprising vehicle, we just don't have much information beyond these images.