Honest question, and please don't flame me for this, but... would any of the following factors affect track performance on hot days (to any significant degree):
- Exterior color (white vs. black!) -- I could imagine a couple degree difference..
- Running the A/C on high -- how close in proximity is the A/C unit to other engine vitals?
Maybe not huge factors, but was wondering if there was a conventional wisdom regarding either, for performance driving in hot climates.
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