my father has an 86 mustang with 450,000 miles on it motor died @ 301k and tranny was replaced around the 350k mark but ran when he sold it. People who bought it only drive it to work and back ( about 5 miles) so i cant imagine there is much more. Body of that car was crap but it ran like a brand new car best part of it all is he traded it for an ATV that he paid $150 for.