3 ms·It would help but the glass windows (greenhouse effect) are probably a bigger factor.by dreamcompiler 7y agoIt would help but the glass windows (greenhouse effect) are probably a bigger factor.olyjohn 7y agoGood window tints (with IR and UV blockers) help big time keeping the car cool.sgc 7y agoWe need integrated pop up solar car awnings that provide energy and shade. They actually make funky pop up car awnings, but a sleeker, solar option would probably take hold in hotter climates.