I was taught (in Canada) to always keep a candle in the car in case you get stranded in the winter. In fact, there was a candle made specifically for this purpose (it was flat, in a small tin - https://www.amazon.com/Coghlans-36-HOURS-SURVIVAL-CANDLE/dp/...)

Yeah, I had one always in my car. I live in Australia now, but still kinda tempted to get one.

The reason I find this article interesting is, how well would a gasoline car fair under the same conditions? I assume you'd not run it the entire time, but heat it up, let it cool down, and repeat through the test.