<but at what outside temps? If thats at 95-100F or if its at 65-70 outside F>
It makes virtualy zero difference. You are comparing cooling based on ambient temperature compared to windchil factor, a whole different ballgame of ambient temperature.
You obviously do not live in Houston....LOL 100F "wind" vs 65F "wind" do make a difference on cars down here...... and "back home" in Sweden, with - 20F , yes outside temps do make a difference....
and I can tell now on my 69 400 , if I drive it on a hot summers day in 95-100F or if its a "cool" spring day at 75F...the engine temps do differ....from 200-205 now w new radiator , to down of 185-190....
Granted , "modern" cars dont get impaired much by the outside temps....but they are , even though not perfect, much better cooled than 40-45 yr old cars.