It was -16 this morning where I live.  I'm sure it was much colder n other parts of this tundra we live in... I start my car so that my wife and I don't die of hypothermia.  I also have a toddler and I don't care to see her die either..  I couldn't care less about the environment (global warming is a crock of enviro-nazi bs).  

And this is why I will always start my car and let it warm for at least 10 min.. you people are worried about a few dollars?