The Nurburgring has been home to BMW for the last few days over which the German automaker has been spied testing a few of its upcoming vehicles. And the latest model to be caught lapping the Ring is the upcoming BMW 435i wearing the M Sport package. Previous spy shots and a near-production ready concept unveiled in Detroit have given us a good idea of what to expect of the new 4 Series, but these are the first images of how it will look wearing M Sport gear.

Finished in Estoril Blue II, the 435i prototype features (camouflaged) M Sport bumpers, the optional full LED headlights with squared-off corona rings, and M Sport brakes are visible through the alloys. Although the test mule isn't wearing them, the M Sport package will also likely include new wheels fitted to a retuned suspension.