@ai6yr Maybe some mobile homes are constructed with metal framing and better fire resistance, but all I’ve met (in emergency services) were dried out and not much past structural kindling.
Cars have become more entertaining in recent years too, with shock-absorbing bumpers (gas stuts in some can forcibly extend in fire conditions), explosively-deployable rollbars, airbags ~everywhere, and hybrids and EVs with power cables scattered throughout places where recusers might want to use extrication tools.
It was a training tradition in one local fire department to set off an airbag every couple of years, so that the responding crews became more familiar with deployment; how loudly and forcefully those deploy. And how you didn’t want to be in the path of one.
Fuel canisters and gasoline cans and who-knows-what-else in many cars. Local cops found half a drug lab being driven around.
Yeah; there’s not a whole lot of reason to risk staff with a car fire, if the available responders aren’t trained and equipped. Not for what is often a total loss.