Volkswageen unveiled a prototype today for a new, high-temperature fuel cell that promises to be cleaner, lighter, and more efficient than low temperature models.
General motors is producing a home-based hydrogen refueling unit that could make the mass production of hydrogen-fueled cars plausible as early as 2011.
In a strong continuation of its campaign to produce more environmentally-friendly autos, Honda has produced a diesel engine that produces as much or less emissions as a gasoline engine of equal size.