If you do not have a short term task for the money I would be inclined to sit on it for now.
As mentioned the market high-low thingy is worth waiting for. Buy when the market is depressed and sell when it is strong as much as you can. Drive it to enjoy it but when the market returns sell it.
Our Aero S2 cost us £40k quite a long time ago. I am guessing I could just about move it on for £35-38k now. It has gone higher previously. Of course there have been noticeable costs associated with running it, less than a lot of other cars I could have chosen. It has given value and enjoyment to match that cost so I am not going to cry.
It depends on the need/value of extracting the money now.
