Showing an almost identical silhouette to the current generation A6, the 2012 model bears an indistinguishable front end from the rest of the Audi model range - particularly the A7.
(http://imgs.blackfalconmedia.com/2010/11/30/medium/12440929201978500775.jpg)
2012 Audi A6 photos leaked (http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/0GfLyVcM0RA/official-2012-audi-a6-photos-leaked)