WTF you would want the engine to stay running after a crash is beyond me, and this statement is NOT true. You could easily have a situation where a line was "cracked" spewing fuel all over a hot engine, and the fan blowing it all over hell.
I tipped a van over on it's side in a bizzare fog/ ice thing and the dammed thing kept right on running. I wasn't hurt, and managed to reach up and turn off the key, then crawl out the high side door.
