After unveiling its upgrades for the 2013 BMW M5 late last year, California tuner Vorsteiner has just released these new pictures of a stunning Singapore Grey version of the car. The F10 M5 by Vorsteiner is equipped with a downforce-producing custom carbon-fiber front splitter, and also gets an optional carbon-fiber rear diffuser. While it doesn't receive underhood performance upgrades, Vorsteiner gives the 560-horsepower 4.4-liter twin-turbo M5 the killer look it deserves.