To follow up on Tim's specific remark. There are exacerbating flaws in some
modern vehicles that did cause some horrible fires - one due to ruptured
fuel tanks and another caused by a flawed cap release over an unvented tank.

We had a fire here last year from a ruptured tank under otherwise benign
circumstances. It was gutwrenching horror. Everyone died. Fast. 10 gallons
of fuel dispersed suddenly and blew up. The fire was up and over before the
first responders got there.

My deepest sympathies to all who know of such victims.