http://www.bbc.co.uk/newsbeat/27432184
Dozens of lives could be saved on roads if the law was changed to make a new type of technology compulsory in all new cars, according to road safety campaigners and insurance companies.
They want autonomous emergency braking (AEB) to become as common as seatbelts
Matthew Avery is director of research at Thatcham, the insurance industry's research centre and says AEB is "the next seatbelt".
He adds: "If the driver doesn't take avoiding action [it] will automatically brake the car to mitigate the crash or completely avoid it altogether."
The system works by using sensors fitted to the car which can detect if the car in front is slowing down or braking sharply.
It can then judge quickly if the car needs to come to an automatic emergency stop..
