I went from the 325i to X3 and have overall been pleased. Minor issues are only one cup holder in middle; many come stock with fake leather- it looks terrible and doesn't wear well either. Go for the REAL THING! It does feel more like a sports vehicle than luxury. But, it's fun to drive!
Picks up fast- zips around great!
Widen the front exterior. Unimpressive from the front. Lacks some luxuries.