As BMW Motorsport Works Driver Marco Wittmann has taken the DTM title once more, the German automaker is celebrating his victory with 200 examples of the M4 DTM Champion Edition. With a boost to 500 horsepower and a top speed limited to 189 mph, the latest BMW will show off a number of race-spec upgrades including a front splitter, aero flicks, side skirts, rear diffuser, and a large rear wing. The car will also contain the M4 GTS’ water injection technology that cools the engine’s combustion chambers.