Images: Crowdsourcing for car design

Once, again, Peugeot's entrants come from as diverse backgrounds as those of Olympians. The contest drew participants from all over the world, including Bulgaria, Columbia, Croatia, South Korea, and Iran.

The diversity of entrants has led to some really unusual approaches that might seem odd to the average U.S. driver. Of course, it's that technological freedom to be original that makes concept car contests so cool.

Thierry Dumaine of France wins major creativity points for this one. His Facile concept car allows you to remove its two front wheels and use each as a one-wheel moped.