An incentive to keep track of a car history is not really under discussion, since it's already happening right now. It's just really cumbersome right now and us

An incentive to keep track of a car history is not really under discussion, since it's already happening right now. It's just really cumbersome right now and using very old tech (stamps in a books, etc). It's all made up of bits and pieces in every way. When you buy a car right now, you expect it to come with at least a maintenance log. So that part is not an unknown. Everything I mention already exists, it's just that it would be way easier and more complete when it would be handled by a 'standard protocol', ie a blockchain. The same can be said for supply chain applications. But the second hand car industry has even more trust issues. Selling a car for $8000 and getting around $2000 extra because you can prove it has a proper history is not fantasy.