"Supporters of natural gas make a strong case for its use in our cars and trucks, but the reality of burning natural gas as motor vehicle fuel is challenging. That's because there is a relative shortage of natural gas fueling stations. More importantly, there's a short driving range of most natural gas vehicles.
However, at the recent Frankfurt Motor Show in Germany, Volkswagen introduced its new subcompact model, the Up! (we'll refrain from further use of the exclamation point), as well as six concept versions of the Up. One of those concept cars is the "eco Up" with a dual-fuel EcoFuel System engine that uses both Compressed Natural Gas and gasoline.
The idea behind Volkswagen's subcompact is that the car runs on natural gas in regular use, but it also holds a 2.5-gallon reserve tank of gasoline to give owners a cushion of extra driving range" [Continue reading...]
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