Unless it's a must to sell your car (you absolutely have to have the cash to save your house or something drastic like that) then I'd sit on it. Cost little to nothing to store and maintain. It's not like a pet, you don't have to feed it or water it or pet it and love on it. The market is in fluctuation. It always has been. It comes and goes with the stock market. As stocks devalue a lot of folks move from paper to real assets. Everything collectible starts going up, from cars, to coins, to comic books. Look at the late '80's going into the '90's.
In this cycle, a lot of people are moving to commodities, as Leo's pointed out. A lot of folks have moved to silver and gold, yet smaller collectibles are starting to move. But it's got to be rare to garner attention these days. A lot of speculators got educated the last go around.
There's absolutely no sense in taking a bath on it just to sell it. Especially if you have the means to store it yourself - your own garage, being able to do your own maintenance, being able to drive it when you want to.