A refreshed BMW 4 Series is in development, as we've seen in a plethora of spy photos. But the purple ragtop featured here is actually the first time we caught a high-performance M4 test vehicle in public.
As you can see, it wears the same amount of camouflage at the front and rear as other 4 Series prototypes snapped by our spy photographers. That doesn't mean the M4 will carry the same updates, however. Details of the lower fascia look very much like the current model with all the vents and contrasting angles, but it might adopt a more aggressive appearance similar to the M4 CSL. Higher up we see slightly smaller headlights, a feature shared with the refreshed 4 Series. The grille appears the same, for better or worse.
