It appears that the BMW M4 CS might actually be a thing, if you add up all the clues.

AN ANONYMOUS user at bimmer post has shared what he/she claims are photos of the production BMW M4 CS being used to shoot promotional materials:

“They are shooting a commercial of the M4 CS in California with Augusto Farfus right now.”

Not much to go on, but the claim appears to be worth some weight as BMW works driver, Augusto Farfus, has posted to his twitter and revealed he was indeed working on a top secret shoot with BMW:

This all comes not long after spy photos showed the M4 CS testing in the snow over January. And BMW has already secured the rights to the M4 CS name…

To top it off, we’ve already seen a production M4 CS in the Spanish domestic market, with 60 units being sold, however, it was a market-specific product from BMW of Spain – not BMW M GmbH.

So if the car is in fact the rumoured M4 CS, and the shoot was indeed for promotional material, then it could be that BMW is getting ready just in time for us to see the BMW M4 CS unveil at Geneva next month.

So, what is it?

The M4 CS would sit in between the M4 and the M4 GTS. It would serve as a weekend race car that’s potentially lighter and better set-up for track work than the M4, but not as impractical as the GTS (or expensive). The pictures supplied by the anonymous shooter also provide some hints as to what the car could come with, including the potential to pack the same water injected high performance engine as the GTS.

The car in the photos appears to be sitting on BBS FI-R wheels, similar to those announced by BMW M at SEMA, which are its lightest alloys yet. Under the rims are carbon ceramic brakes – so this would be a lighter car than the M4 is.

There’s some carbon fibre bits front and rear which appear similar to the current M4 GTS’, and, the interesting part, is that the bonnet appears to the same carbon fibre parts as on the M4 GTS. That lightweight carbon fibre bonnet allows for fitting water injection to the intake manifold, and boosts the M4’s 3.0-litre twin-turbocharged six-cylinder engine to produce 368kW at 6250rpm and 600Nm at 4000-5500rpm.

So, potentially a lighter and more powerful M4 is on the way… the question is, if so, then what’s next for the M brand?


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Alex Rae

Alex Rae brings almost two decades’ experience, previously working at publications including Wheels, WhichCar, Drive/Fairfax,, AMC, Just Cars, and more.

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