The hydrogen could be used to fuel cars with two of the known methods. It can either be used as a fuel cell or as a direct consequence of fuel.

1. With fuel cell;

Hydrogen-->Fuel cell (to electric)-->Electric Motor

 2. Hydrogen rotary engine

Hydrogen rotary engine employs direct injection, with electronically-controlled hydrogen gas injectors. This system draws in air from a side port and injects hydrogen directly into the intake chamber with an electronically-controlled hydrogen gas injector installed on the top of the rotor housing. The technology illustrated below takes full advantage of the benefits of the rotary engine in achieving hydrogen combustion.