well I got it today and it fits nicely but I had to use the sticky pad (included) stuck onto the inner side of the lower tailgate since the straps won't velcro onto the rear carpeting back there. Except for the small yellow text on the product, and the 2 hanging straps, it actually blends in with the black bumper pretty well. Not that looks was what I was going for. It also stores nicely underneath, where the spare is.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr