I think we do know it would help. If your car can't physically see the car 1/4 mile ahead, but gets info that it has slammed on its brakes, thats very useful.
If you've ever driven in bumper to bumper traffic on a highway you know how invaluable this info would be, even to a human driver.
Plus info about road conditions (icy spots ahead!), etc..
Agreed. This is exactly why I hate driving behind SUVs. I like to be able to see the car in front of the car in front of me. It gives some additional reaction time.
I also feel like if you know where every car on the road is, you can also optimize the traffic light timing.
There is no reason to sit at a red light at 2:00 in the morning when there are no other vehicles, pedestrians or bicycles on the road. But the law currently requires it.
