2012 Audi A6
 

http://images.thecarconnection.com/t...00360877_t.gif As Audi continues its relentless march on the turf occupied by BMW and Mercedes-Benz, it's also whipping its lineup into fighting shape with a uniform look and more evenly divided price points. That shape-up works fine for the more attainable A4 and the social-climbing A8, but we're left wondering whether the plainer 2012 Audi A6 has...

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