A styling package by Duke Dynamics for the all-new BMW M4 is in the works and by the looks of things, there will be some serious exterior modifications. The MD4 aftermarket package will include a new front bumper, three-piece carbon-fiber front lip spoiler, a custom vented hood, carbon-fiber side skirts, and extended wheel arches housing chrome and black concave alloys. At the back the M4 will get a carbon-fiber diffuser and ducktail spoiler. Performance mods have yet to be revealed.