Since autonomous in most cases also means car on demand, I think the car ceases to exist as seperate entity to configure, what's more import that there is a sea

Since autonomous in most cases also means car on demand, I think the car ceases to exist as seperate entity to configure, what's more import that there is a seamless transferable configuration based on your preferences once you rent any car, so that it becomes a nearly natural augmentation of your smartphone or whatever device you'll cary around with you sometime in the next 2 decades. Meaning low friction in getting your audio/calls out over the speaker system and syncing of navigation with your other devices. And having car notifaction and interior lighting, audio EQ preferences synced too. Any screens left in the car might be there purely for diagnostic or entertainment (think inflight entertainment and hopefully better) purposes, that need only minimal direct interaction.