War Rooms: The mid-size sports sedan battle rages on. 2009 Audi A6 3.0T vs. 2009 BMW 535i, 2009 Infiniti M45, 2009 Jaguar XF, 2010 MB E350 – Comparison Tests http://www.caranddriver.com 2011 BMW 5-series / 535i – Second Drive http://www.caranddriver.com