 This is an update of an original posting.  The BMW X3 has HORRIBLE engine and transmission response.  The dealer can not remedy it as no more software updates are out from BMW but I do not think any more computer programs will solve the potentially dangerous throttle response; you do not go anywhere at times when merging.  The navigation system is awful I had to buy a Magellan unit.  The handling is sub-par, think the crappy cheap Pirelli STR part to blame but not up to BMW standards.  BMW corporate is impossible to deal with they are of no help at all.