What if cars were invented today?

A thought occured to me. What if cars were invented today; to say that they didnt exist til today. How many safety features would be required and how much more advanced would cars be today?
It seems really reckless the way things are now. I think we would be required to pass much stricter tests and pay higher fees a the least. 100 hours of driving to get a license.
Lets talk technology. Non of this bullshit $300 for a reverse camera (that cost $50 in parts). I bet there radio frequency tags and magents would be in use. It seems CRAZY that at any time, i could sneeze or fall asleep and cross the center line and cause a 5 car pileup at any given time. Or that someone else might pass out and ram their vehicle straight into my car car.
I think if vehicles and driving were to debut in todays world, our roads would be safer. Magnets embedded in the road creating invisible lanes that an equiped car and on-board computer would read and not allow the car to pass over (unless a 'override button' was pressed. RFID tags and detectors to note what cars are around you and possbily tracking what car hit yours and ran away. Heads Up Displays (like in jetfighters) that show pertinent information on the windsheild, so you dont have to look away. Combined with RFID and internet wifi we could track whos in what car, their 'feedback rating', stolen vehicles, etc.
If I cant have the flying car future we were promised, at least improve our vehicle technology to 'state of the art'.
What do you think it would be like if cars were only to become available today?