Hydrogen Car Company (h2Carco)Internal combustion engines have been modified to use hydrogen since the 1930s. Roger Billings modified a Model A Ford to use hydrogen in the 1970s when he was a high school student in Provo, Utah. A number of automotive vehicles have been modified to use hydrogen in the U.S. in recent years by Los Alamos investigators and other individuals and university teams. The Hydrogen Car Company is the first to offer commercially available H2ICE vehicles. The engine modifications are minimal, and have to do mainly with the fuel injectors and the electronic timing for combustion. Check out their Hydrogen-powered Shelby Series 1