All of these are solved by better public transport/safe bike routes and more walkable city designs. All of which is we can do now, not rely on some new shiny tech so that we can keep car companies profits up.

The day I can get in a car and not be simultaneously afraid of my own shortcomings and the fact that there are strangers driving massive projectiles around me is a day I will truly celebrate. The fact is that automobiles are weapons, and I don't want to be the one wielding it when a single mistake can cost an entire family their lives, although I would like to be there to slam on the brakes and prevent it if needed.

The possibilities really are endless.

When the light turns green the entire row of cars can start moving at the same time like on motor sports. Perhaps you don't even need traffic lights because they can all just drive to the intersection at the same time and just keep barely missing eachother but never crash due to the superior reaction times and processing speeds of computer. You could also let your car go taxi other people around when you don't need it.