Chris 
2011 BMW 5 Series Sedan 535i xDrive 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
Get back to basics
 I previously owned a '95 M3 that was rarely in for repair.  This 2011 535 has seen the dealership far too many times.   In a span of just over 2 years the following has occurred: keyless entry failed (multiple times), water pump failed,  AC failed,  valve cover gasket replaced,  another oil gasket leaked (last 2 were total $2,300), 2 wheels bent, 1 wheel cracked (run flats not for typical roads), sway bar replaced to name a few I recall.  Other than that, I do love this car.  X-Drive is probably better than most SUV'S out there.  Love the aggressive looks of the M-sport package.  Car is bank vault solid.  I feel very safe hauling my family in it.  I-drive is decent but not as intuitive as Acura.  Gas mileage is outstanding for such a large car (29 hwy).   Long trips I've done 34 mpg.   Power is impressive.  Hesitation from stop is there as others have written.  Very odd.  Feels like transmission is slipping.  Dealer claims it's normal.  Seems almost any brand has issues.  If you get lucky with yours,  you will love it.  BMW simply needs to simplify their electronics.  Stop the over engineering and focus on building a solid car again.  My problem is I visit the Philly auto show every year.  Not another car out there that meets my need for performance,  style,  price,  awd, safety and comfort.   Sounds like a market opportunity...