What stops him from issuing something like ERC-721 Tokens for his cars? You'd be able to do cool things, like you'd be able to trade it P2P, or do stuff like un

What stops him from issuing something like ERC-721 Tokens for his cars? You'd be able to do cool things, like you'd be able to trade it P2P, or do stuff like unlock it with your MetaMask wallet and the whole infrastructure is already here. For me doing this would be a logical next step at some point.