I'd just argue that the person who took the loan out was not the owner at the time the loan was taken out, that I was, that they were the registered keeper, not owner and never had my permission to take a loan out on the car, that if they were stupid enough to give someone a loan against a car they never owned, then it is their problem, that they should do better checks before approving loans, if that failed I'd just burn it out, claim on the insurance and tell them to do one.