VW Eco Up! Claimed as the most fuel-efficient cars, as quoted from Autoevoluation, Thursday, December 6, 2012. VW Eco Up! Requires about 2.9 kg of natural gas (CNG = Compressed Natural Gas) for speeding up to 100 km.
Fuel Gas for the car "VW Eco Up!" An alternative choice other than hybrid car using the gas emissions will be cleaner and less costly.
More than two decades of Volkswagen (VW) to develop the natural gas. There are currently six Volkswagen models with fuel gas, i.e. 2.0 EcoFuel Caddy, Caddy Maxi 2.0 EcoFuel, Touran 1.4 TSI EcoFuel, Passat, Passat Estate 1.4 TSI EcoFuel, and Eco Up! And soon there will be a Golf.
VW Eco Up! Also developing fuel cars, such as biomethane generated from new sources.