Battery powered vehicles are even more practical than gasoline when you consider that you can "refuel" at home. Why would someone want to pay for a new technology for propulsion that depends on an infrastructure that is not soon in coming? Outlets are everywhere already. Even in that parking lot at Home Depot. And the torque from an electric motor can't be beat for getting a car moving. An electric motor has constant torque over the speed range where a gasoline engine has maximum torque at high speeds. And, as Adrian points out, hydrogen tanks, like gasoline tanks, are dangerous in fires. We need electric cars and some nice clean nuclear power plants to charge them.