[LightningStrike]

For a market-based reality check, put it on eBay with a reserve and watch what it reaches. That gives you a baseline value of what the tight end of the makret is prepared to pay. Add (at this end of the market) 20% to the highest unsuccessful bid and put it on CarSales. You'll sell it.

However, if he or you love the car that much and attach that kind of value of it perhaps it is best off remaining with him. There isn't a lot of love in the market for this kind of car at the moment, even for an exceptional example.