I just purchased a 2006 X5 with 38K miles. I also purchased the Extended Maintenance plan with it. A break job can/will be expensive. If you haven't had one yet, you are probably due here soon. Mine were done at 36K. This plan covers me till 2012 or 100K. Either way, I think it was a good deal. If you decide to go with an Extended Warrenty ( different from Extended maintenance ) go by the BMW dealership and ask then for suggestions. They know which ones are good and which ones are not.