G/day Guys
Just some quick calcs. to dispell any internal explosion myths !
The force from dissipating the energy in a crash with a 2600 gram (2.6 kg) car travelling at 75 mph is :-
stopping in 1 sec - 9kg.
stopping in .1 sec - 88kg.
stopping in .01 sec - 888kg.
so if it hits a solid steel barrier that doesn't budge - 1000kg would be possible. Hitting another car could be anything from 50 to 200 kg of force! That's why the engines shatter.
It's also why I used to hate marshalling the straight or turn off the straight !
Regards Richard