Personally, I would not buy an X5 out of warranty unless it was a killer deal - and for me, that would have to be between $15k - $20k off market value. Additionally, one of the things that made the X5 even more appealing to me was BMWs CPO program; the extended warranty and service is worth it IMO. With that said, BMW claiming a vehicle has been through a XXX point CPO warranty means nothing. I thought that "inspection" would be more thorough than my own, and I can personally state that it is not. Do your own thorough inspection. Now, my BMW dealer has been excellent and had no issue fixing anything I pointed out. Finally, with BMW offering 0.9% on 2005 and 2006 3.0 and 4.4 models I really couldn't justify spending more on a 4.8 or buying private party non-CPO.

My $0.02.

BTW - that Imola Red 4.8L is gorgeous, and personally, I wouldn't let Navigation influence my decision. I have it and rarely use it. With hand held GPS systems and smartphones that can be updated constantly I find them more reliable than the maps on the navigation unit.