[evan_]

If your phone battery explodes and starts a fire you have better odds surviving a dive out of your car as opposed to an airplane.

[guax]

You must have a pretty big phone to take down an airplane. If you are driving the car you are much more likely to loose control and cause deaths then a phone bursting in an airplane causing anything more then nasty burns.

[Retric]

Fires in a luggage compartment may be an issue even if they start small.