All the key numbers stack up here; there's 510hp from the latest 'S58' version of BMW's classic straight six 3.0-litre powerplant. And 650Nm of thrust, enough to simply hurl you up the road in almost any gear. For this Convertible M4 Competition model, xDrive 4WD is non-negotiable, the set-up being one you can also customise for a rear-driven feel if you want it. The transmission is a ZF 8-speeder and if you're quick with the provided paddleshifters, 62mph from rest will be dispatched in 3.7s. On the way to a top speed that'll be raised to 174mph if you pay the extra for the optional 'M Pro Package'.
All of that's accompanied by a glorious roar from the active sports exhaust, whose soundtrack is one of the things you can alter either via this centre console 'Setup' button or the centre stack display's selectable 'M Menu'. Either way, you get to a screen allowing you to tailor your preferred drive settings and store your two most favoured combinations behind these little red 'M1' and 'M2' tabs on the steering wheel - one perhaps for commuting, the other maybe for your favourite backroad. You can alter parameters for engine, transmission and steering; plus there are three 'chassis' options for the suppleness of the Adaptive M suspension with its electronically controlled damping; and two pedal feel settings for the M Compound brakes. Plus there's a centre console 'M Mode' button, which offers 'Road', 'Sport' and 'Track' settings, each of which changes the instrument display and the level of drive assistance system intervention.
Braver folks can use the 'M Menu' to deactivate the DSC traction system and play with the track-orientated 'M Drift Analyser'. BMW's standard 'M Drive Professional' package also includes an 'M Laptimer', plus the brand has also redesigned the cooling and oil supply systems specially for circuit use.