If you are considering selling your car before it is repossessed, you should carefully review your loan agreement and the laws in your jurisdiction to make sure that you understand your rights and obligations. You should also consider the financial implications of selling your car, such as whether you will be able to get enough money to pay off the loan or whether you will be responsible for a deficiency balance.
If you are not sure whether it is legal for you to sell your car before it is repossessed, you should consult with an attorney.