Not sure of the mileage, as it was too dark to see the miles.
____________________________________________________Never make any conclusions about the condition of a car in the dark. Go back during daylight hours and take a really good look. For $3500 I am betting that the car has 175K or more miles and is in need of many repairs and services including paint and some body work. A good '86 560 SEL with service paperwork and lower miles and with the body in good condition will sell for at least $8500, probably 10K$ to 12K$. And well worth the extra cost.