Not necessarily, although this is perfectly achievable with current technology
Can you elaborate a bit? Bitcoin's blockchain is 120 GB
Yes, 1TB+ hard drives are cheap, SSD storage is getting cheaper and we already have cars with full, pretty sizeable computers onboard (ex: Tesla), so it is perfectly achievable to have a car connected via 4G, downloading blockchain information. Not saying this will be required, just saying it is possible.
Blocks
KYC is required, but no further details on this for now.
Yes, that is correct and that's a good way to describe DAV in a nutshell.
There are autonomous vehicles on the road as we speak, with different levels of automation.