In the small space of a car, yes it is. Enough to heat the car so you don't freeze to death. It isn't going to be balmy, but you're likely in warm clothes, and it adds enough extra heat.
Candles can apparently output close to 100W of heat. Why do you say it wouldn’t make a difference in a small space such as a car?
Not in the slightest. But, a candle can melt snow. And provide light, useful in emergencies.
In the small space of a car, yes it is. Enough to heat the car so you don't freeze to death. It isn't going to be balmy, but you're likely in warm clothes, and it adds enough extra heat.
I really don’t think so. Candles are meant for slowly releasing their energy, like, extremely slowly.