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

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.

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 ...

Sadly, almost every wild and wacky concept car that has been revealed never makes ... to watch their own music or video content. All these weird and wonderful designs never made it into production ...

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.