Relative risk of fatal injury in vehicle to vehicle impacts involving cars of different sizes.

The paper presents estimates the relative risk of fatal injury to drivers of vehicles of different size. Vehicles are divided in seven size classes with five classes pertaining to passenger cars. Early results indicate that large differences are present in the risk of fatal injury to the two drivers in accidents involving vehicles of different size. In collisions between the smallest and the largest of the five classes of passenger cars the driver of the smaller vehicle is almost 14 times more likely to be killed than the driver of the larger vehicle.