I would rather see cars that can sense other vehicles and get speed, heading and performance information from them and take control when they feel a crash is imminent and communicate the fact they are doing so to drivers of 'dumb' vehicles. for example, you are in your 'smart' car on a main road approaching a 4 way intersection, the road crossing your road has a 2 way stop. Another 'dumb' car is coming the opposite way the same distance from the intersection as you are and a 'smart' car is approaching the stop sign on the side road. The driver in the 'smart' car has decided he is going to roll the stop sign and try to beat both of you, his car detects that he is about to do this and senses through communication protocols and radar that it will most likely result in an accident with your car and/or the 'dumb' car. His vehicle takes control and brings itself to a stop in front of the sign while sending a signal to your car that it is in emergency braking and flashing a standardized visual signal (maybe something like orange strobes on all 4 corners for 2 seconds) to the driver of the 'dumb' car to alert them a dangerous situation is occurring. Your car in the meanwhile has decided to start slowing and prepare for a full stop in case the other 'smart' car skids into the intersection and the driver of the 'dumb' car seeing the signal takes the same precaution.
Systems like this would greatly reduce the amount and severity of traffic accidents while also allowing drivers to continue to drive and avoid the situation I mentioned in the first place.