I am also looking at the BMW X5 CPO 35D CPO w/ the premium package, climate rear pkg, nav, and mileage less than 35k. I seen a loaded 2009 with all that and more but the mileage was really up there over (40k). My car was a victim (well, I am the victim) of the Sandy Hurricane in NYC.
The 2010(s) BMW x5 35d I've seen didn't have the Nav or the powerlift gate and I can't drop $40k for that??? I did however, (please don't scream) checked out the Audi Q7 TDI. I might be wrong but the features on that baby is sweet!!! It comes with the 3rd row and many of the features I mentioned (as standard). The price is similar and some a little low than the BMW.
Anyway, I am new here and learning as much as I can and why should i get the BMW X5 3dD over the Audi Q7 TDI.