The Worlds first Drag Race featuring the HH2TM HYDROGEN WATER FUEL CELL CLEAN AIR COMBUSTION SYSTEM debuted in HH2’s “BIG DOG” GREEN Drag Racing is proof positive that Hot Rod and racing vehicles can be fun when participating in popular motor sports activities, yet, have lower toxic exhaust emissions or even Zero exhaust emissions, all while using a few pennies of water to produce on - board Hy.