I had a customer complain about this a few weeks ago along with the crickets. He left the car with me for the day. We parked both his whiteout and my asphalt next to each other for a couple hours in the sun, and compared at lunchtime.
Mine read 3 degrees warmer.
Lighter colors reflect heat. I wish I'd used a digital thermometer to take the temps on the hood/bumper.
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