tommymight 
2011 BMW 5 Series Sedan 535i xDrive 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
Quick, nimble, refined and GREAT highway mileage
 I traded in my tired gas hog 2009 Tribeca for a 535 x drive all wheel automatic. I have put 1500 miles on the 535 in three weeks and it is a true BMW. Quiet, smooth, solid acceleration and rock solid handling. The iDrive still has about 300 functions I have yet to figure out and while it is better than the older iDrive systems it's still recommended ONLY for the truly computer literate. I am amazed by the mileage. 33 mpg on the highway is common so far. I do worry about the "run flat" tires and am thinking about buying a spare tire for long trips. 50 miles on a flat run flat will still screw over a trip quick. 