Fuel Cell 10: Car & Experiment Kit The Fuel Cell 10 Car & Experiment Kit provides a hands-on introduction to one of the most significant technologies of the early 21st century. With this kit, you can build a model car that actually runs on water! First, use solar energy to separate water into hydrogen and oxygen. Then, plug in the motor and the fuel cell uses these gases to produce electricity that moves your vehicle across the floor. The only by-product is clean water.