Summer sun protection: fasten outside!
Either as an advertising stunt or as a prize in a raffle, there are often sun protection screens for the car, which can also be used as frost protection in winter. A car basic that is unfortunately often not known in reality: If you want to protect the windscreen from strong sunlight, such an aluminum sunshade should be used attached to the outside of the pane, of course! If you put it on the inside, it tends to get a bit warmer than without it. The sun protection heats up on the inside and then acts a bit like a heater.
If you are afraid that the sun protection could be stolen from the outside, we recommend the cheap and good sun protection for the windscreen from Freesoo for around €15.
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