Mileage isn't a real good indicator of the car's reliability because if it was maintained well and those are highway miles, there can be a lot of life left in it. You CAN expect to not have to pay much though for a car that age. The best approach is to take the car to an independent shop for a safety inspection. They will check the brakes, steering and suspension systems, exhaust system, charging system, and they can even get into a more detailed engine analysis if you want them too. Remember there's a lot of things that can go wrong a day or two later that no one could possibly foresee, but you'll have a good idea of the present mechanical condition. If the current owner won't let you take it for an inspection, let him keep the car. He's hiding something that he doesn't want you to find out. Most used car dealers will welcome you getting your own inspection because they've already done the same thing and they know what kind of condition the car is in.