Generally Monty Python does not blend in well with German humor. Much of the humor got butchered up in translation anyway. I only started liking it, when my command of the British language became good enough to actually understand it.
In the case of car fires running might be a bad idea as you might be in area with fast moving vehicles. So get out, make sure the other passengers made it out too, look for a save path of retreat and then walk away. On German roads people get killed for hurrying in the wrong direction - not on purpose but that does not make much difference to them.