I'll weigh in on the moonroof... been dealing with various malfunctions with it for 4 years, and each time they addressed it, but it's still a hassle. On top of that, it's never put to good use. In the summer, it's too hot to have the blind open, plus the 2 little ones sitting in the back get too much sun [burn] from it. In the winter, it's just too damn cold and an extra window for air to get out. Besides, it's too gloomy for it to be open anyway. In short, there's really only 1 good season out of the year for it... not really worth it if you have the option.

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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