That can be very easily explained as "bigger cars are safer for their occupant and deadlier to the person getting hit by them". I do think you need to defend y

That can be very easily explained as "bigger cars are safer for their occupant and deadlier to the person getting hit by them". I do think you need to defend your assertion, because the difference between a driver and a pedestrian is that the driver "knew the risks" while the risks were imposed on the pedestrian.