I have owned my X3 now for several months. The performance is truly unbelievable!I traded in my 2000 ML320 only because the upkeep was becoming more than I was willing to pay. I am so glad I did, this is a much nicer vehicle at a better price. Almost ten thousand dollars less.
By far the panoramic moonroof. A close second would be the heated steering wheel with a great grip.Xenon adaptive headlights are also a MUST
Only improvement I can suggest is a better cup holder, maybe even a heated and cooled one.