they'd probably all have been decapitated

If that's a risk, do you not have underrun bars?

But also as someone else said they meant if it was a regular car instead of the bus, not the truck.

They were talking about the bus. If the truck rear ended a sedan, not if a sedan rear ended a bus.

No... a car doing a carpool instead of a bus.

Sedan instead of a bus. I'm guessing you drive a truck to commute to an office job every day?

If you drive up the arse of a goddamn school bus with that much stopping distance you deserve to hurt only yourself, not the kids in the back of that bus.