It's not a question of mile so much as care of the car. Mine has 232000 miles on it now but all fluids have been changed and it gets serviced at the recommended intervals. You need to find out about the car's history. Has it been wrecked? Does it LOOK beat on? You can tell a lot by how it looks alone. Have the recalls been done? If not the owner probably doesn't care much about the car. Find out about service history, etc. and get a carfax on it if you are that concerned.