Hydrogen cars, or hydrogen fuel cell electric vehicles (often shortened to FCEV ), are vehicles powered by hydrogen fuel . Hydrogen is stored in a tank at 700 bar, which generates high-voltage electricity to a small buffer battery which provides transient power for acceleration The land-speed record for a hydrogen-powered vehicle of 286.476 miles per hour (461.038 km/h) was set by Ohio State University's Buckeye Bullet 2, which achieved a "flying-mile" speed of 280.007 miles per hour (450.628 km/h) at the Bonneville Salt Flats in August 2008. The fact is that the risk of explosion in hydrogen cars and other vehicles is not high . To start, the majority of the belief about the explosiveness of H2 in fuel cell vehicles has to do with a misunderstanding of the gas. H2 requires a spark from a flame or from electricity to ignite and lead to an explosion. It can be readily produced from water using renewable electricity, and it burns without any greenhouse...