The 2015 BMW ALPINA B6 xDrive Gran Coupe makes its U.S. debut and thrills the enthusiasts with a monster 540-HP (540Lb-Ft Torque) 4.4L Twin Turbo V8 powered 6GC created by Alpina in close co-operation with BMW. The Alpina B6 also features Electronic Damping Control and Active Roll Stabilization technology, achieving a top speed of 198mph!
Source: Bimmerpost