CS, originally for Club Sport, dates from the 1960s. In the BMW lexicon these days it stands for a road car that’s at home on the track, rather than a track car you can drive on the road if you must. If that sounds a subtle difference it’s not meant to, for in practice the new M4 CS promises to have its own distinct character – as it should for a £27,000 step-up.
It’s more than a standard M4 Competition Package car, less than the (now sold out) M4 GTS – at least, less in the circuit driving sense. There’s no roll cage or adjustable front and rear spoilers here. Instead, you get seats in the back and, as BMW puts it, all the “unrestricted real-world usability” the standard M4 offers. Plus of course all the mod cons like navi'.
Here’s a car that’s out to be as happy trundling to work and it is blasting around the Nurburgring Nordschleife where its do-it-all nature is confirmed by a 7minute 38second time, neatly between that of its two stablemates.
So what are the changes for this new £89,130 M4? Aero mods, most notably a new front splitter and a “Gurney” lip spoiler to “significantly” reduce rear lift over the M4 Competition Package car, are among the chief upgrades. The rear diffuser is from the GTS. Underneath, adaptive M suspension, with electronic M locking diff, comes with the familiar Comfort and Sport settings, and there are bespoke CS spring, damper and anti-roll rates.