I purchased the X5 3.0 3 weeks ago. I absolutely love this vehicle. I'm not going to lie and say the V6 is a monster, but it is more than adequate. For the difference in price, I got a fully loaded vehicle. The ride is superb, the seats are very comfortable (active driver seat with sport package and ventilated seats). The sound system is awesome (Premium sound). The iDrive is extremely simple to use and very intuitive. The computer is kind of slow to load, but it is a DVD based system. The Navigation system is very good. The rear camera is awful. During the day the resolution is fair, and at night its atrocious; what are you gonna do. That is my biggest gripe.
Comfort access, navigation, Bluetooth, premium sound, active ventilated seats, and just about everything else.
Must do something about the rear view camera. Improve the resolution and add lighting for night viewing. Otherwise can't think of anything else.