Quote:
Originally Posted by SC380D
3. Reflective sunshades in windows (when parked)
Self explanatory.
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Why only when parked? You can block the rear side windows (semi-)permanently, as you do not need them during driving. This will reduce some of the greenhouse effect when the sun is lower.
How about parking in the shade? Sometimes you'll have to walk farther across the parking lot, but it may be worth it.
If you have a regular parking space or driveway, then maybe you can build a shade over it?
You can also try a thermal cover
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Here is another idea: Thermal insulation.
The metal chassis is great at conducting heat, so if you stick insulation between the metal and the interior liner and panels (some time-intersive work required) it will help keep the hot out and the cool in.
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An additional benefit is that it will help make the interior quieter.
A down side to fuel economy is the additional weight.
Many RVs and RV conversions have thermal insulation on the floor, sides and roof to keep warm at night.
More recently, EVs benefit from thermal insulation, to reduce both heating and cooling load.
Quote:
Originally Posted by freebeard
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When parked yes. But what about the aero penalty?