It will have every component as any other car including a steering wheel which is what I suspect you think may be missing. Not so.
yes
Many companies have but I believe BMW has done most.
People who are elderly, or depressed, or exhausted, and just want to stay home and watch TV and not go anywhere, will buy driverless cars, so that the proper level of congestion on the highway can be maintained without the hassle of getting dressed and going out and making it happen. It is our civic duty.
There are a multitude of reasons why cars could fail. Generally, it comes down to component failure.
Rear bumpers on passenger cars are required by the NTSB.
Smartphones will be flexible. They may be foldable or rollable. Pre-fab homes will be made by 3D printing. Driverless cars will be in abundance. The first space tourists will have successfully completed a roundtrip flight.
2011
Even South Carolina requires mufflers on all cars
It's required by law.
If you are talking about driverless or autonomous cars, an internet search indicates that they are still being tested, but there still must be a trained driver behind the wheel. Now, if you are talking about something else, the question would need clarification.