The reason trucking accidents cause more catastrophic or severe injuries than car accidents is the sheer size or weight of that truck. Right? So, you could have a 60 mph impact from a car versus a truck. The reason you’re going to have more serious injuries in the truck is just because of the sheer size. When you transfer that energy from the vehicle that hits you, a truck, into your vehicle, which then transfers into your body, it causes catastrophic injuries just because of the sheer size.