Stimulus 
2009 BMW X5 Diesel xDrive35d 4dr SUV AWD (3.0L 6cyl Turbodiesel 6A)
Early impressions 100%
 I purchased a dealer demo with 8000 miles.  Paid $51K pre-tax, sticker of $63K, Invoice of $57K.  Included $4500 eco credit.  Dealer extended Warranty to 55,000 miles.  I have driven 3000 miles so far and can find nothing to fault.  Performance and handling is superb.  There is no turbo lag if you use kick-down mode or shift to M1 for quick starts. Hiway accel is gutsy, mind the staties.  I-Drive is easy to use, but it helps to practice when you are not driving.  The Nav is DVD based but terrific.  BMW Assist lets you download locations from Google Maps.  Cool.  I drive a lot in my job. Mileage averages 21mpg around New England and Boston. 27mpg on a long hiway trip at 75mph to 80mph.