Well for one, in the UK, when you sell a car, the seller fills out a little chit and mails it to the government, who then mail a new title to the buyer. So at

Well for one, in the UK, when you sell a car, the seller fills out a little chit and mails it to the government, who then mail a new title to the buyer. So at least there'd be record of the sale, and an address to start to track where the money came from. In addition I think he thought the bank's security cameras would add critical information about the seller. Not sure what other verification he may have done.