Parking in the sun on a hot summer day
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Joined: May 2001
Posts: 23,226
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From: Upstate NY
Vehicle: 2010 Genesis 2.0T
If you are directly in the sun, then yes. The trunk is dark and shaded where as the cabin will heat up extremely hot if you dont have a sun shade on the front windshield.
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Joined: Dec 2008
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From: Floating around the AUDM
Vehicle: X3 Sprint, S-Coupe Turbo
Iirc (which is not a solid assumption to be making) the cabin will heat up and cool down more rapidly than the trunk. I mean there's probably factors like fuel mass and hot exhausts etc, but we'll ignore them.
The cabin basically has shitty insulation and very little thermal mass
The trunk is doing better because of no windows
The engine bay would be the slowest to heat up and cool down because of the giant thermal mass (iron engine) and no glass. Although it isn't sealed so air currents can pass through.
short answer: it depends
The cabin basically has shitty insulation and very little thermal mass
The trunk is doing better because of no windows
The engine bay would be the slowest to heat up and cool down because of the giant thermal mass (iron engine) and no glass. Although it isn't sealed so air currents can pass through.
short answer: it depends