If your loan is unsecured you can sell the car without any hindrance, but you must continue making your repayments until the loan is fully repaid. You could also pay out the loan in a lump sum if there is no early exit fee, or only a low fee to pay. The situation is different if your loan is secured on the car. You will need to contact the lender and notify them of your plan to sell. They will explain to you your options for finalising the loan, and the amount required. Ideally, you need to pay off the loan before you advertise your car for sale, because no one is likely to buy a car with a financial encumbrance. You may need to repay your loan balance by using your savings, your credit card, or a new unsecured personal loan.