I feel they help block sunlight into the rear seat where my son sits. Yes, the shades that come from the factory on the rear windows are great, but this is another aid when traveling north/south and sun is hitting the car from the side.
That said, I absolutely agree that it’s also an additional layer of privacy.
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2017 X5 ///M
2019 X3 XDrive 30i
2003 Porsche C4S
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