Originally Posted by
znomit
In the 70's we had compressed natural gas. Have seen a tank that turned itself inside out. But that happened in a garage with the tank out of the car. Made a mess of the garage.
I suspect they have improved the tanks somewhat. In our class they showed a CNG car being dropped from a 50 foot high crane. Then they took a fully charged tank and shot it with a .357 magnum, no leaks. Finally, they shot the tank with an armor piercing round which did cause a leak, but no fire.