Audi has upped its game in recent years to match forces with BMW and Mercedes-Benz, and the 2012 A6 puts the carmaker one step closer. The 2.0L turbocharged models are competitively priced, while the 3.0 supercharged cars give buyers a hefty dose of performance. Add in technology goodies like Google Earth navigation and wireless hotspot, and the A6 proves to be a formidable entry in the luxury sport sedan segment.