2011 BMW Z4 sDrive35is Pic: 2010 Detroit Auto Show
doesn't have an M-badge anywhere on it. But with twin-turbo inline six uprated to 335 hp, this two-door is as close as you can get to ultimate
power and poise in a roadster.
First Look: 2012 Audi S6, S7, and S8
The outgoing S6 was powered by a naturally aspirated, 5.2-liter V-10 engine that produced 435 hp and 398 lb-ft of torque, and needed 5.1 seconds to go from 0-60 mph. The 2012 Audi S6's powertrain promises...