I wouldn't want a car that costs as much to fix than its worth. Tell them that if it costs more than 11k to fix it that you want them to pay for it or you want them to total the car for 11k. Then warn them that if the car is not fixed after they put 11k into it that you will have to sue them to finish the repairs. They won't want to take the risk and will probably total the car and you'll get your money back. You can then take the 11k and buy another one, if that's what you want to do.