Can be tricky in the wet and on challenging roads BMW ... the exhaust is titanium and the brakes are carbon ceramics. All this contributes to a weight saving of 30kg over an ordinary M4 fitted ...
In the middle was the BMW M4 CS, or Club Sport ... change to the powertrain is the fitment of a more free flowing exhaust system. Away from the dynamic upgrades the M4 CS is also the recipient ...