Stranded in Vehicle - Emergency Heat in my Car - Will This Work?

What if I get Stranded on a cold night in my car on a deserted road with No Heat? Will this work? That was a question I had and decided to do a mock emergency heat situation. I do not recommend trying this unless you do your own research and are aware that it is an open flame in a close situation and you are aware of any flammable material around the flame. Do not attempt if you are not able to stay awake and aware of the flame at all times.
I would recommend trying the terracotta pot method and place in an area that it can't be knocked over.