A NGV NATURAL GAS VEHICLE (NGV) is a vehicle which runs on natural gas, a fuel which burns much more cleanly than gasoline. Because many countries are seeking alternatives to gasoline as a fuel source, the use of NGVs is growing around the world, as the cars are energy efficient and very clean burning. Consumers in some countries can purchase NGVs, and existing cars can also be converted to use natural gas. In addition, many companies offer fleet vehicles which run on natural gas, allowing cities to convert their cars, buses, and trucks to natural gas.
Natural gas is a gaseous combination of hydrocarbons, typically heavy on methane. Technically, natural gas is a fossil fuel, and it is considered a nonrenewable resource as a result. However, natural gas is fairly abundant and is generally cheaper than gasoline. In addition, it burns much more cleanly than gasoline, making it a better choice for vehicle fueling since it can dramatically reduce emissions. In some cases, an NGV can run on biofuel, a renewable form of natural gas made from biological material such as manure. by wisegeek
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