Then the question arises who is responsible for that imperfection. Remember the Toyota auto acceleration issue and how that played out socially.
Safe driving is one of the most complex things done by people. If tech companies are good enough to solve that, there many things more profitable and easier to solve.
I beleive it will be more realistic for them to develop seprate and exclusive infa for these vechiles. We can then plan rest of the things around that infra.
Integrating self driving cars into current infra will require a true AI or something closer.