Undoubtedly one of the best widebody kits available, Vorsteiner GTRS4 Widebody is the true epitome of wideness for a BMW M4. This build was done by Wheels Boutique, featuring the complete Vorsteiner aero program, custom made ADV.1 Wheels and the AccuAir suspension system. Unlike some other builds, the Alpine White GTRS4 seen here is clean and looks interesting from all angles.
In order to showcase its beauty, William Stern took the M4 for a photoshoot. The results can be seen below.