This X3 is a sharp car and drives like a 3 series sedan...this is a blast to drive. Outside of that, it gets less attractive. It isn't very big for an SUV (ie Doesn't carry a lot of stuff or people). The fuel economy for a V6 is horrible (maybe 17-18MPG?) Four passengers in this thing feels like too many. The trunk is tiny (can't fit 1 set of golf clubs across). And the interior features aren't stellar for a $40K vehicle.
Exterior looks, fun to drive.
Upgrade the interior. Make it just 6-12 inches wider.