You need to open a front and a rear, that way what enters the front can exit the rear in a steady flow, rather than an in and out fight between the two rear windows.

Most of the reason for that is when it’s in gear, you can train it to come out of gear. When it is in neutral, you can’t really do much damage, but the habit might become a problem.

I think it has to do with purging moisture before the AC kicks in, which removes all the humidity from the air. Otherwise, it could fog it up right when in switches in some situations.

They can only sap energy if there is a temperature differential. The reason they say it feels like -20° when its 0° outside is because with the wind, it is able to steal thermal energy from your body quicker. If you set a tub of ice cream outside, which was at 0°, it would neither get colder or warmer, as the air…

No, a high wind speed won’t lower the temps enough to freeze, it just accelerates the sapping of thermal energy from items where there is a temperature gradient.