first u need to ask urself this question: do I need an Xi?
if so, then have a thorough checking of the vehicle, it's been down the road a lot. get the maintenance records and read the wiki for the possible maintenance and preventive maintenance.
if u can talk them down a lil further would be better for a car with that age and mileage.
Give a man a fish and you feed him for a day. Give a man a Chef and he feeds him for a lifetime