Once the smart contracts come into play and even your grandmother has to register her car online through the blockchain by paying with Bitcoins, that's when things will really get real. You have to look at the big picture. Blockchain was created with Bitcoin(p2p payment system) and once the network was large enough and stable, add the smart contracts. Bitcoin is the payment system for the smart contracts using the blockchain. That's been the plan since 1994, it hasn't changed, it's all documented in great detail through the entire process.