Mazda RX-8 hydrogen or gasoline vehicle

"On Wednesday, October 11, Mazda delivered a dual-fueled RX-8 Hydrogen RE vehicle, which can run on both hydrogen and gasoline, to the prefectural government of Yamaguchi in Japan. The Mazda RX-8 Hydrogen RE's dual-fuel system allows a driver to select either gasoline or hydrogen fuel with the flick of a switch." (more)

While I'm not 100% behind hydrogen as America's next fuel, I do firmly believe that dual fuel vehicles are far better than vehicles that only function on one fuel. When in doubt, choose choice.