Okay I think I may have narrowed it down to 2 X5's finally! They are basically identical. Both silver with premium wheels and all the packages (sport, premium, cold weather, premium speakers, ect...) Here is my dilemma, One of the X5's "car A" has a 2 year extended warranty and is a CPO and has a panoramic roof. The other X5 "car B" does not have both of those but instead has navigation and parking sensors. They both have about 56,000 miles and look to be in just about the same condition. Both clean title same interior and are identical except for the items listed above. What one would you take? I know this is all personal opionion but I'm just trying to get an idea. I think im leaning towards the CPO and warranty because most people who have NAVI don't seem to use it, but who knows. Thanks for your opinions!