I know having the AC on cuts down terribly on fuel efficiency, but how does it compare to 4x50 ventilation? (4 windows down at 50 mph 
) It seems the drag produced by having the windows down, especially in modern cars where the aerodynamics are so meticulously crafted, could cost as much fuel as just using the AC.
I know the difference is probably negligable either way, but I’m just curious. Anybody have any thoughts?
Now the question is whether the data gathered using a 1986 Saturn is comparable to that which one would get doing the same thing today.
My guess would be that the ultimate in mileage/comfort would be to crank the vent, just blow the air from outside on to you really hard, without opening the windows and getting the drag effect, or turning on the compressor to cool the air and take precious gas. Note that this is not an option in a Texas summer, as the air outside would still be lethal.
P.S. - Where’s Dane? 
LC
LOL
Dane
Oh dear…