2007 Jaguar XJ-Series XJR Sedan

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One supercharger compressor

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4,196 cc 4.2 liters V 8 front engine with 86.1 mm bore, 90.4 mm stroke, 9.1 compression ratio, double overhead cam, variable valve timing/camshaft and four valves per cylinder AJ33 V8

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Premium unleaded fuel 91

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Fuel economy EPA highway (mpg): 24 and EPA city (mpg): 17

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Multi-point injection fuel system

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22.3 gallon main premium unleaded fuel tank

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Power: 298 kW , 400 HP SAE @ 6,100 rpm; 413 ft lb , 560 Nm @ 3,500 rpm