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The Porsche Panamera has the capacity of the Audi-supplied six-cylinder, common rail direct injection unit is 2,967cc, with performance boosted by a turbocharger. The engine produces 247bhp between 2,800-4,400rpm and 406lb ft of torque from 1,750-2,750rpm.
Examining those figures might lead you to believe that there’s a flat-spot between where peak torque ends and peak power begins, but in reality the torque curve falls away so gently that no such thing exists. What the diesel throws into the box of tricks is the ability to travel in the region of 750 miles between fuel stops.