You guys are amazing and making my mind boggle. Ok...so, what if it was zero degrees out and I had no antifreeze. The temperature was zero degrees, but with a blowing north wind of 50 mph blowing straight at the front of the car...that wouldn't make a difference.??If inanimat objects don't feel temperature differences, then why do the space shuttles and that heat up when entering the atmosphere?
(I think I should have paid more attention in high school)
The heat ablative tiles on the Space Shuttle heat up due to the physical property of friction. As the shuttle decelerates and it's orbit decays to the point where it begins to contact denser layers of air molecules in the Earth's atmosphere, the friction of these air molecules against the molecules of the tiles generates heat -- the same way the palms of your hands warm up when you rub them together. Because of the high speeds involved, the effect of this friction is much greater -- the temperatures can reach over 1500 degrees Fahrenheit, thus the need to protect the structure of the shuttle with the tiles which can withstand temperatures which are much higher.
BTW --wind chill does affect inanimate objects such as automobiles and other machinery. An automobile sitting in air which is 32 degrees F. with no detectable air movement will stabilize at 32 deg. F. But add some wind, and the temperatures will reduce, albeit in porportion to the density of the material which is being cooled, and the shielding effect of surrounding structures.. The engine, being surrounded by the car's external structure, would not be subjected to significant wind chill effects, and should remain close to the ambient temperature.