The 4 Series coupe has been spotted almost baring it all while still undergoing testing before its near release. This Glacier Silver 435i prototype is a Sport Line model. It features a sportier front bumper, black high-gloss elements (bumper accents, air intakes, kidney bars, B-pillar trims, and exhaust tips). It also has optional upgrades such as 19″ style 407 wheels with mixed performance tires, M Sport Brakes, and LED headlights with squared off corona rings.
Source: F30Post