I was looking for better fuel mileage in a well built SUV with many of the features from my previous vehicle. The X3 has more room than it looks. It is well finished inside and out. I like the engine but the 6 sp auto trans. seems to hold onto gears too long and down shift easily. Mileage is only about 21 in a mostly highway commute. The ride is very firm and it handles well for an SUV. The X3 reminds me of my wife's old 2003 530 in many of the interior operation components.
Interior/exterior fit and finish, performance from the 3.0 six and handling.
Revise the auto trans., update the switch and functions to the more modern BMWs, improve the fuel mileage.