So I got the car for $3500 when it was 13 years old and had 34,000 miles on it. So he had it 13 years and made a whopping $25 on it!
Now, about that offer....
so, if the PO made 25 dollars on it over 13 years, and im offering you $3500 (over your initial investment) over 38 years, it sounds like i am offering you a much better shake then you gave him