3. Cadillac Ciel Concept

Complex Says: There are very few concepts that have been this instantly desirable. The second you lay your eyes on the Ciel, you want it. Nobody cares about the engine or the transmission. The car could be powered by a three-legged Pomeranian, and it would still be just as desirable. This is the luxury halo car Cadillac needs, if only it would just produce it.