2007 Audi S6 Sedan

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5,204 cc 5.2 liters V 10 front engine with 84.5 mm bore, 92.8 mm stroke, 12.5 compression ratio, double overhead cam, variable valve timing/camshaft and four valves per cylinder

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Premium unleaded fuel 91

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Fuel economy EPA highway (mpg): 21 and EPA city (mpg): 15

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Gasoline direct injection fuel system

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21.1 gallon main premium unleaded fuel tank

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Power: 324 kW , 435 HP SAE @ 7,000 rpm; 398 ft lb , 540 Nm @ 3,500 rpm