Attending one of Europe’s most important auto shows, the Paris Expo Porte de Versailles, were various hybrid and solar powered vehicles. One vehicle touts zero emissions with a hydrogen fed fuel cell. Other hybrid vehicles combine diesel gas with hydroelectricity or are completely battery powered. An adorable car, designed to look like a water droplet, took the rain cistern idea to heart. While driving it collects water, filters it, and offers it to the driver in a water bottle. Check out more of these concept cars at Paris Expo Porte de Versailles on MSN.com.