With 661 horsepower and 738 lb.-ft. of torque from its 6.0-liter twin-turbo V-12 engine, outrageously extroverted styling and performance that is sure to cause nosebleeds, the 2009 Mercedes-Benz AMG SL 65 Black Series that debuted at the 2008 L.A. Auto Show is so studly that we’re pretty sure it actually runs on pure testosterone. Of course, pure testosterone is a pretty expensive fuel, but if you can already foot the $299,000 bill for an SL 65 Black Series, then filling the tank with human performance hormone shouldn’t be too much of a stretch.