Black Interior and Summer Heat

It gets out. I do have a shield and it helps a bit. Tinting the windows help as well as cracking the windows open when in the sun. It also help to keep the battery from overheating.

 

Grand scheme? Doesn't really matter. If you get all in to the radiative transfer equations you'll find that colors and materials really don't make that much difference. The equations rely on the theoretical "black body" perfect absorber/emitter functioning in a vacuum. Shade is your friend, as much as you can get. I use a solar shield on the front windshield basically to keep the steering wheel from becoming a branding iron. Those of us in the hot climates have already learned how to operate our vehicles with only two fingers that are kept in rotation. I will say that the Gen 4 HVAC is a big improvement from previous generations.

 

I have a Silver 2021 Prime LTD with a black interior. I've only owned it for one summer. I purchased a YelloPro sunshade ($27) that is custom sized to fit perfectly. I also drape a white cotton towel over the sliding luggage compartment cover. The heat in the Nashville area can be brutal but these 2 accommodations really help. My last vehicle had a tan interior but wasn't any cooler.