One thing I'm not clear on.

In the case of a Vanagon fire, such as the one in NY, and where the ignition
is switched off quickly, is there a continuing supply of fuel from the tank?

Seems like there was more to fuel that fire than there should have been.
But then I haven't seen all that many engine fires (had one in a '61 Beetle
but it didn't ignite the interior).

//Jack

Spotted on the back of a T-shirt worn by LAPD Bomb
Squad: If you see me running, try to keep up.