I noticed on several new S class MBZ's there was a tint on thewindow, but is not the regular dark tint or chrome, etc. It just made the person bairly visible and it looked factory. It almost gave the effect that you get when you see a person from a distance and there is aglare on the car.
What type of tint is that or is it some sort of special window that makes them harder to see?

Business offices (especially in the hotter parts of the region) have this type of window...polarized glass.

I don't think it's a factory application, but rather, an aftermarket film. Polarized automotive glass is not DOT approved...

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

Thanks!!!

Mercedes AMG cars come with tinted glass that is different than non-AMG cars. IT has a bluish tint. Its kinda neat.

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93 300D 2.5 Turbo, Black/Palomino 273K
09 E350 Black/Black 41K