Look at www.kbb.com at the used car listings to get an idea what its worth. Selling a car thats only 14 months old means you are going to take quite a depreciation hit.
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Resistance Is Futile (If < 1ohm)
I'm afraid equity in cars is like saying jumbo shrimp. You've a greater chance of getting hit with spacelab than making money on a car. I'd see how much you owe on it and look in the paper and see how much similar cars are going for and figure out how much you could realistically get for it and make up the difference with cash or a signature loan. I'm trying to sell my car and plan on taking a 700$ hit on it. (P.S. never borrow money on a car-you will always lose) My next car will be paid for cash-money and I'll never worry about selling a car again.