Amazing, a month a go I was following a truck and I was thinking that they should be equipped with flat panel in the back and camera in the front.
In 95 I was thinking to patent or go and see GM or Ford about the break lights system. Mine was infrared or ultrasound.
All cars and trucks had to be equipped with that of course.
The first car would brake sending a signal to the car behind,(it's why I was thinking IR or US because of the directionality) the second car would relay this signal and send it to the third car without anybody touching the brakes,but the brake lights would turn on automatically, and so on. That way the 10th car would see the brake lights on the 9th car at the same time the 2nd car would see the lights on the 1st. So, immediate time of reaction.
But now Mercedes came out with a radar that keep distance automatically and brake for you so everything is obsolete.