Hello I once asked a question I sold my car,I’m not a dealer they made test drive and agreed for 950€ I still said flaws you had made sol.And in the contract I wrote the test drive was made and that I wouldn’t make a withdrawal because I’m private.Now after 4 days he calls and thinks the car has control chain problems that it does not synchronize,and tell me on the phone I should think about it, take it back or his uncle i St Lawyer, is blush I have him only sales contract has only he I made no copy for me, can he do anything or just want to scare me, I told him what is done and also wrote that he did test drive and no withdrawal or guarantee