x5 
2011 BMW X5 SUV xDrive50i 4dr SUV AWD (4.4L 8cyl Turbo 8A)
X5 50i Very Disappointing
 I now have about 3000 miles on my 2011 X5 50i.  I had high expectations for a vehicle that I paid almost $80K for.  However, there is a persistent and annoying engine whine at slower speeds in the lower gears.  It increases and decreases with engine speed and can be reproduced at about 2000 rpm while stationary and in neutral.  I think that it could be the clutch in the alternator.  However, two Dealerships have told me that it's normal for the 4.4 twin turbo, get used to it, or turn up the radio.  I liked the car but this is unacceptable. I need to get rid of this car. I can't believe that any car manufacturer would approve this situation.