By specialized interfaces, Hydrogen can be filled into the the gas tank of the car. There is a 25*25mm Proton Exchange Membrane Fuel Cell ( PEMFC ), which can work with the Hydrogen and Oxygen in the air, to supply power to the car. H2 fuel cell reaction window should face the operator After draining the gas tank type water, do not tilt or turn over the body to avoid too much water into the fuel cell. After ruffled rear body brace can be left open.