Though the U.S. seems to dominate the news when it comes to CNG vehicles, over in Europe automakers are also playing with natural gas vehicles. The new VW Eco Up! is being billed as the world’s most fuel-efficient CNG vehicle, returning an estimated 56 mpg with some of the lowest carbon emissions of any vehicle on the road.
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In the endless pursuit of higher fuel economy, Volkswagen is thinking small; really, really small. In fact, Vdub is cutting one of its most popular engines, the 1.6 liter TDI, in half. This will create a two-cylinder diesel engine that will deliver impressive fuel economy for some of VW’s most expensive, and least expensive vehicles.