There is merit to also considering advances in technology, safety and performance. If one does so it is likely a vehicle over say 5-7 years old will be lacking something you would like to have and cannot be upgraded to get it. Since it is far easier to find a vehicle that is 50,000 miles away from major replacement costs paying more for a newer vehicle contains less risk, delivering more and costing less for another 50,000 miles.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas