I got a better idea, why not turn the whole of the front end of a car into one massive air bag, so when they hit more fragile traffic whilst they are twiddling with their hifi or on the mobile, they might not kill them.
This bearing in mind that it is cars that hit other traffic, rarely the other way around, we should not have to shell out to protect ourselves from them, they should do the decent thing and shell out to protect others seeing as they are the major cause of rta's