IMHO, if you are worried about the money, the time to sell is now. The target market for a car like that is getting older by the minute. Cash is king, invest the money somewhere else. Cars are a bad investment.
Glad you got a good price for car so it could help your brother's wife. I had to do the same with my oldest brother's stuff too. His cars weren't worth much at the time.
Just to show that collector cars aren't a good investment, I used this as an example and ran the numbers... Let's take that $4000 from 40 years ago and invest it. Let's also figure that it costs $500 or so that it costs to insure, register, and store the car. Add that $500 annually to the investment. With a 7% annual rate of return, you would have over $120K.
