I'm wondering the same? I bought a car privately from the auto trader locally and paid the going price for it, up until this car I'd hpi'd 5 cars and spent hundreds on them. I saw this car and nothing seemed wrong so I bought it. Nearly 18months later I got a private plate and registered the plate with the DVLA, then a month later I received a letter fro Billing finance to tell me the car had outstanding finance and they wanted to know all sorts of private data about me. I told them that the finance was not on me but the previous owner and that I was an 'innocent purchaser' I received another letter again requesting the same information to which I sent the same letter I'd originally sent. Recently I went to buy a new car and they hpi'd mine as a px and wouldn't look at it further. Am I legally untitled to sell the car on?