► 2013 BMW M550d xDrive - DRIVING

Six-cylinder in-line diesel engine with M Performance TwinPower Turbo technology, aluminium crankcase, three turbochargers (high-pressure, with variable turbine geometry), common-rail direct injection with piezo injectors, maximum injection pressure: 2,200 bar. Displacement: 2,993 cc, output: 280 kW/381 hp at 4,000 -- 4,400 rpm, max. torque: 740 Nm (546 lb-ft) at 2,000 -- 3 000 rpm, specific output: 93.6 kW/127.3 hp per litre of displacement. Acceleration [0