<P> For purposes of insurance and policing, the driver of the car that rear - ends the other car is almost always considered to be at fault due to not leaving enough stopping distance or lack of attention . An exception to this rule comes into play if the rear - ended vehicle is in reverse gear . If the driver of the car that was rear - ended files a claim against the driver who hit him, said driver could be responsible for all damages to the other driver's car . According to data reported by the NHTSA, the percentage of rear - end accidents to all crashes is between 23--30% . </P> <P> The Ford Pinto became the focus of widespread concern when it was alleged that a flaw in its design could cause fuel - fed fires as the result of a rear - end collision . </P> <P> Recent developments in automated safety systems have reduced the amount of rear - end collisions, as they act as a second - check system if the driver fails to avoid the vehicle in front . </P>

In what types of weather do most collision occur