my '85 635 had more miles on it before I bought it two years ago. I ran Carfax last night, and in 1997 it had 170K. When I bought it in 1998 it only had about 120K.. So... there is a good chance the previous owner changed the mileage I think the cluster was swapped. This means my car likely has about 210K actual miles. I plan on letting Carfax know but since it's a 1985 it's exempt from mileage reporting. Will this effect the resale value? I would advise anyone buying to use Carfax.