If you thought Vorsteiner's GTRS4 M4 wide-body aero kit was a bit over the top, wait until you get a load of the track-oriented "VX" version.
Vorsteiner really does have a knack for dressing up the BMW M4 in ways that make people stop whatever it is they're doing and admire some very aggressive custom bodywork.
Of course, if wide-body design is too much for you, you can always get your M4 to wear just a couple of basic Vorsteiner bits, such as the V-FF 102 Flow Forged wheels, the EVO front lip and deck lid spoilers, and the GTS diffuser - much like this Alpine White model right here.
If a clean look is what you're going for, that car right there should do the trick. However, if you want something even more imposing, Vorsteiner will invite you to direct your attention towards their GTRS4 wide-body kit, which adds 4 inches (102 mm) to the front end and a whooping 7 inches (178 mm) at the rear. You complete the look by getting the extended side skirts as well, otherwise you'd end up with a car that would appear to be too thin in the middle.
In order to top that, Boden Autohaus, Magnaflow, Kolab Agency and Basf Refinish joined forces and helped put together a race-inspired, track oriented widebody kit for the M4.
Aside from the livery, Pirelli P Zero tires, extra carbon bits and a massive rear wing, this car also comes with a pair of Nitrous tanks and a roll cage, just in case the kit itself didn't look hardcore enough.