Fresh air is denser so therefore has more oxygen to burn. My car had a fuel injection system and the coolant is fed into a small area under the throttle butterfly to stop it freezing up.
Strangely I have a blue car, and it does seem to have a problem with the laws of physics. It weighs two tons, accelerates to 60 in slightly under 5 seconds and still does between 45 and 50 mpg
Right hereWhere can I get one of those Blue cars?