Wondered the same thing as I get used to iDrive in my "new" CPO 2009 X5. How useless is the map perspective in the side window - it changes the view in both maps. Dumb.
Side gripe: Why dont they include updated maps in a CPO? A simple update for them and another feature to sell the car. I mean they probably pay more to replace the wipers than they would to pop in a new DVD!