carboy 
2006 BMW X3 SUV 3.0i 4dr SUV AWD (3.0L 6cyl 6M)
2006 BMW X3
 If you want the smoothest x3 ride avoid the sport package and stick with the 17" higher profile tires.  The handling is still great.  This is all the advantages of a truck in a package that drives like a sports car.  Nav system is easy to use and  pops up out of the top of the dash.  Upgraded sound sytem sould be a little better but isn't bad.  Seats and driving position are great but the bottom line is the x3 is just plain old fun to drive.