Downsized 5.5L V8 Biturbo in S 63 AMG Delivers 25% Fuel Savings Compared to Predecessor; Stop-Start is Standard
Green Car Congress
MARCH 14, 2010
In addition to its twin turbos, the new eight-cylinder unit—known internally as the M 157—features gasoline direct injection with spray-guided combustion and twin turbochargers. CO 2 emissions have likewise been significantly reduced: at 246 grams per kilometer, the figure is 28.5% AMG has developed a 5.5-liter
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