When you've already built one of the world's most impressive and most recognizable supercars, where do you go from there? Right here: the SLS AMG Black Series. With 622-hp and 468 lb-ft of torque coursing through specially developed rear tires that are over a foot wide, this gullwinged beast pushes right past the realm of supercars and into unknown territory. -- Published on January 23, 2013