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At its market launch in the spring, the Phaeton will be available with two high-performance petrol engines. The top-of-line engine is the new W12, a luxurious and extremely dynamic 6.0-litre twelve-cylinder engine with an output of 309 kW / 420 bhp and a maximum torque of 550 Newton-metres at 3,000 rpm. The 5,998-cc W12 is extremely compact, having a length of 513 millimetres, a height of 715 millimetres and a width of 710 millimetres. It comprises a torsionally stiff aluminium crankcase with high-resistance cylinder liners. The consistent application of lightweight construction is evidenced by the magnesium valve covers, a two-channel magnesium intake manifold and magnesium timing chain covers."