1. Make automobiles that can magnetically "click" together to achieve greater fuel economy and reduce traffic conflicts.
2. Provide auto-sense overrides in vehicles that implement collision detection and avoidance. Please, don't use Windows software!
3. Provided that the first two conditions are met, then and only then give drivers the ability to take their eyes off the road so they can use all the gadgets they're now carrying around with them. Otherwise, sound alarms if the drivers' eyes are wandering down to their passenger seats or dashboards.
I'm not anti-car. I'm anti-personal-mobility-that-kills-pedestrians-and-bicyclists by design of the vehicle and the roadway. There's a big difference.