Andrew 
2009 BMW X5 Diesel xDrive35d 4dr SUV AWD (3.0L 6cyl Turbodiesel 6A)
X5 Turbo Diesel (no 3rd row seating)
 Had a 3.0 X5.  Test drove Audi, Lexus, Acura, BMW gas, and fell for performance of X5 diesel.  After 7,000 miles I am actually trading it in for MB ML350 diesel.  BMW just not as comfortable.  Seats not as supportive. Engine can be too loud. Satellite radio comes & goes.  Passenger seat grinds/clicks when moved. Steering wheel squeaks when moved. Rt side speakers go dead on iPod integration.  Need to roll the window up/down a few times to get speakers back. Steering wheel does not telescope long enough for 6-1 height.  Engine performance is incredible.  Second seat leg room is great.  Cargo space is great. Just want more refinement.  Maybe I am getting old.