Point taken. The wind has no effect on the end temperature, only the speed at which something gets there. It can't cool below the ambient, as you said. Wind chill is often quoted in posts about battery problems or low temperature oil flow. It just doesn't come into play, unless you are walking home without a hat after your X5 wouldn't start.

I enjoyed the heat transfer courses at university. I remember an assignment to figure out the heat balance of an automotive disk brake using finite element analysis. Came in handy many years later for discussions about drilled rotors. I never minded thermodynamics. Fluid mechanics, on the other hand, was brutal. I also recall a fourth year controls course that was a little abstract.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue