Hey,
@Ken7!
I'm not sure where we disagree... I meant to communicate that for me on my new i4 with the Xpel ceramic tint on the windshield, the characteristics of the HUD has changed. I could not find an angle of my head with my polarized sunglasses which dimmed the HUD. That's interesting. The ceramic tint is also polarizing, so the double polarization with the sunglasses made for crazy rainbows and color shifts (oncoming cars had their windshields darkened in weird ways, gray cars look pink, and so on). So, I don't think polarized sunglasses buy me anything in this car. If I decide to experiment, I can try contacts with non-polarized sunglasses or just get my new non-polarized and compare them.