No problem with the question. I paid the full price as if I had bought the car, but the car is not in my name. Then we shook hands on a verbal agreement that it was a rental agreement with no end date. If the car ever gets sold, then I receive the money for the sale. The owner wanted to sell it and needed the money. I have the money but cannot show crypto as the source of the funds (governments are unable to fathom how money can be anything but combustible paper). There are a few other guarantees that are quite binding as well and both parties are happy with the arrangement. In short he has the money and I possess something of value to guarantee the same sum of cash.