We traded a Mercedes ML 500 for an X3 3.0 a month ago and couldn't be happier with the change. The X3 handles fantastically and is a blast to drive. It has the tight finish quality that the American made Mercedes lacked and it carries as much cargo as the ML. Ours was delivered with a faulty navigation computer, but this is being fixed and it doesn't affect the operation of the car. Our only wish is that we bought the X3 sooner!
Handling, engine sound at start up, front seats
Air vents for rear seat passengers and better placed front cup holders.