03 9429 3000

BMW releases CS version of M4

BMW is very serious about its high performance models. The M4 is a compact high-performance coupe, the optional Competition Package gives it an extra edge, and the M4 GTS is an uncompromising sports car also designed for use on the track. With its eye-catching powerful looks, it also raises the profile of the M4 range.

A new model-specific front splitter in exposed carbon fibre defines the face of the new BMW M4 CS, which cuts an unquestionably dominant and dynamic figure even when standing still. The car’s athletic lines extend along the CFRP bonnet and powerdome, over the roof and the new, likewise carbon-fibre spoiler lip on the boot lid, to the rear diffuser and its four exhaust tailpipes, integrated with impeccable stylistic fluency.

The extensive use of carbon fibre-reinforced plastic (CFRP) ensures that the new CS is extremely light with the kerb weight at just 1,580 kilograms. As well as the rear diffuser, large sections of the body are also made from CFRP. The bonnet, for example, is around 25 percent lighter than that of the BMW M4 as a result.

BMW’s many years of experience in the production of carbon-fibre components and carbon fibre-reinforced plastics has paid dividends with this new CS. Indeed, the CFRP roof is more than 6 kilograms lighter than a conventional metal item. Another benefit of this extremely light and yet highly robust composite material is the corresponding lowering of the car’s centre of gravity.

Unlike the GTS, BMW has deliberately steered the CS away from a focus on the track. For example, the front splitter is not adjustable and instead of a large, adjustable wing, the rear end sports an exposed carbon-fibre Gurney which is an aerodynamic spoiler lip running across the trailing edge of the boot lid. In the interests of everyday practicality, the M4 CS also forgoes the roll cage fitted in the GTS.

The dynamics of the new CS are rooted not only in a fresh round of suspension revisions over the M4 with Competition Package in terms of spring/damper settings, but also in a moderate increase in power for the 6 cylinder in-line engine. It develops 460 bhp with peak torque at 600 Nm (442 lb-ft).

Generous use of Alcantara and leather has allowed the development engineers and designers to conjure up an interior with an enviable sporting feel. Paring down the passenger compartment to the essentials and, in so doing, achieving significant weight savings was also the declared aim with the interior door panels and the side trim in the rear compartment. Both are made from compacted natural fibres.