GM's progress towards ultra-low emission vehicles

GM’s HydroGen4,reportsthe Green-Car-Guide, represents one of the next steps after the Ampera in GM’s progress towards ultra-low emission vehicles. More than 100 HydroGen4 vehicles are now under test, and Green-Car-Guide has driven one, as the European part of the world’s largest fuel cell vehicle fleet starts operation. For a fascinating and full report on this hydrogen-powered but essentially electric vehicle you can go from here to the Green-Car-Guide website