How to cool down a car or motorhome without air conditioning
External sunshades for the windshield reduce interior temperature by up to 8 degrees Celsius compared to an unprotected vehicle, according to a 2021 A...
External sunshades for the windshield reduce interior temperature by up to 8 degrees Celsius compared to an unprotected vehicle, according to a 2021 ADAC test. Internal shades are less effective, cooling by only 4 degrees. A full vehicle cover can lower the temperature by up to 10 degrees.