[ Ссылка ] - Volkswagen AG - The most effective means for reducing fuel consumption is so-called downsizing. By reducing displacement and thereby lowering frictional losses, a lower specific fuel consumption can be achieved, and this goes hand in hand with better efficiency. The innovative path to the future is the combination of supercharger and turbocharger. The supercharger compensates for typical drive-off weakness at low revs of purely turbocharged gasoline engines, while the turbocharger really puts out at higher revs. This combination of two types of chargers is unique among engines mass-produced worldwide.

Only FSI technology came into consideration as the injection technology; in the meantime this has become a technology implemented by Volkswagen in numerous car model series. Based on experience acquired by engine developers over the past several years with this injection technology, it was recognized that FSI would be ideally complemented by two different charging technologies and enable previously unheard of efficiency gains. In spite of significantly better driving performance, fuel economy is improved by about 10 percent relative to a comparable naturally aspirated engine.

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