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 Competition Touring with M xDrive to be increased by another 15 kW/20 hp to 405 kW/550 hp. The engine develops its peak torque of 650 Nm (479 lb-ft) between just 2,750 and 5,950 rpm, produces its maximum output at 6,250 rpm and tops out at 7,200 rpm.

In addition, a specially designed engine mounting with increased spring rates creates an extremely rigid connection between the power unit and the vehicle's structure. This leads to even sharper engine response and extremely direct transmission of its power to the drivetrain. Its instantaneous power delivery means the BMW M3 CS Touring can power from rest to 100 km/h (62 mph) in 3.5 seconds, and 0 to 200 km/h (124 mph) is over in 11.7 seconds. The figures recorded using the "one-foot rollout" method are 0 to 100 km/h (62 mph) in 3.2 seconds and 0 to 200 km/h (124 mph) in 11.4 seconds. The mid-range sprint from 80 to 120 km/h (50 - 75 mph) takes 2.7 seconds in 4th gear and 3.5 seconds in 5th gear. The top speed of the special-edition model - which comes as standard with the M Driver's Package - is electronically limited to 300 km/h (186 mph).

The car's emotionally stirring engine note is the work of the M-specific exhaust system featuring electrically controlled flaps, a titanium rear silencer with weight-minimising design and - in customary M fashion - two pairs of tailpipes painted in matt Black. The engine's acoustic presence varies according to the engine profile the driver selects from the M Setup menu. SPORT or SPORT+ mode produces a drive sound that injects real aural drama into proceedings, particularly through gear changes and the accompanying adjustments in rev speed.

The engine under the bonnet of the BMW M3 CS Touring teams up with an eight-speed M Steptronic transmission including Drivelogic. The Drivelogic button integrated into the gear selector lever makes it possible to alter the transmission's shift characteristics, with a choice of three clearly distinguishable settings available. As well as comfort-focused and sporty options, drivers can also engage a setting optimised specially for track driving. Both the selector lever and the carbon-fibre shift paddles on the steering wheel enable sequential interventions in the gear selection process.