The blue book value for this car (at least in my area) is $7,270 (
http://www.kbb.com). I'd be suspicious. For some reason in the description, the phrase, "We have determined that the mileage represented on this vehicle is accurate.", makes me nervous. If this is a dealer selling this car for profit, why wouldn't he at least be asking for blue book?
I definately shell out for a mechanic to look it over first.