I'm just gonna ramble as I keep thinking about the idea.
They should allow me to drive but be able to throw on auto-pilot if I so please. Most cars, if the idea takes off, should be comfortable rooms instead of what we think of a modern day car. We don't need the seats to face the same way, we could all face each other. They're should be a table, a place to plug in your devices, a TV to entertain yourselves, and little refrigerator.
There would still be regular cars. The drop top is not going away. In fact, some of those cars may not be able to ride on the road anymore, but they'd be worth a **** ton of money.
Mr. Black already mentioned most of what I'm interested in (Roadhead? Get me some limousine tint and that'll just be the beginning....hope they clean those rentals). Not owning a car would be the norm, as it's incredibly convenient and cheap to simply rent one whenever your needs arise. The people who do buy cars would buy RV's. They would extremely nice. There could be a huge resurgence in that market if they were electric and autonomous.
As for the roadtrip, this would make it so much better. In fact, I forsee this fucking with the airlines so much so that they'll have to innovate incredibly to bring in customers commuting small distances. Would you rather hop in your car that is damn near another room in your house for 12 hours as you travel across the country for free-ish AND have your car during where ever you're traveling to or would you rather pay steep fees to fly and pay for a rental car? If time wasn't a problem, it's an easy decision.
If people aren't driving and if the accident rate is negligible, how fast do you think we can go? Can my autonomous lambo push 200?
And what would this do not just for taxi drivers but truck drivers? There would still be jobs loading the truck, but shipping it? Prices of goods could plummet if it's damn near free to ship anything, anywhere. Amazon's stupid flying drones could already be obsolete.
And last but not least, what about vandalism and theft? This thing sticks out of the roof obnoxiously. It's begging some brat kid to kick it off or take a bat to it. Can they make it smaller? Could they achieve the same goal with several cameras around the car instead of one giant spinning monstrosity?
A couple years and we'll find out. Now let me get rich enough to buy the second model after the eventual manufacturers agreement with Tesla.