CONGRESSIONAL FUEL CELL EXPO 2007 IN WASHINGTON

Robert Wimmer (R) of Toyota talks to Matthew Atwell about the Fuel Cell Hybrid powered Toyota Highlander, while a GM Hydrogen vehicle sits in the background, at the U.S. Fuel Cell Council's Congressional Fuel Cell Expo, on Capitol Hill in Washington on May 15, 2007. The Highlander combines a hydrogen fuel cell system with a self contained electric motor. Current fuel cell vehicles have a range of about 100 miles per tank. (UPI Photo/Kevin Dietsch)