2012 Audi RS7 may reach for the 600 horsepower mark to outdo the next BMW F10 M5.
(http://imgs.blackfalconmedia.com/2010/7/26/medium/5234567561345471573.jpg)
Rumor mill: 600 HP for the Audi RS7? (http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/l8EEFyLA5kM/rumor-mill-600-hp-for-the-audi-rs7)