That's expensive a/c. Rolling down the windows at speed creates significant drag that your engine has to overcome.
With gasoline at today's prices, I use artificial air.
The noise of the wind through the windows causes so much interference in my brain that I can’t do the 2/55 air conditioning thingy.
Even the vents, at full fan, are distracting for me.
And that reminds me. I have to go check the air filter and see if I need to replace it before I get to the smog test today. NV has CA standards for emissions tests, probably because so much of out weekend traffic is from CA...