BMW M3 CS Touring [UK]
The 3.0-litre six-cylinder in-line engine in the BMW M3 CS Touring was designed from the outset to deliver high performance on the race track - and it features a multitude of technological details from racing-car design. These include an extremely rigid crankcase with a sleeve-free, closed-deck construction, a forged lightweight crankshaft and a cylinder head with a 3D-printed core. The likewise weight-saving cylinder bores have a wire-arc sprayed iron coating to reduce frictional losses. The cooling system and oil supply are also designed to handle the sustained heavy loads generated during hard driving on a track. The drive unit combines the high-revving characteristics for which M is renowned and linear power delivery into the upper reaches of the engine's range with upgraded M TwinTurbo technology. Raising the maximum charge pressure of the two mono-scroll turbochargers to 2.1 bar and making model-specific tweaks to the engine management enable the maximum output of the BMW M3...