GM has been testing its fuel cell technology on one of the most arduous motoring courses in the world: the stop-and-go hell of a FedEx route in downtown Tokyo. The yearlong experiment uses GM's HydroGen 3, which GM claims does not pollute one single iota. The FedEx implementation puts the fuel cell through its paces by subjecting it to high temps, constant stopping and starting, and long idle times. This FedEx truck, which is actually more of a FedEx van or FedEx MPV, was modified to hold the large fuel cell which provides a 250 miles range. It is the first hydrogen vehicle approved for public use in Japan. GM plans to sell hydrogen vehicles to the general public by 2010.