I'd be very surprised is this was actually the case. Otherwise we would have heard of Prius' and Insights catching fire a long time ago.

Besides, if Tesla went and crashed a few hundred cars and could not reproduce the fire I'd feel pretty good about their safety. They may have already done this as part of road/crash certification.

Looks like we need a new "Road Debris Hitting the Undercarriage" safety testing.

That would be a really dumb move, because apart from anything else, leaf sales will probably go down too.