To me, the bad part about any window tinted that heavy is when you back into a darkened shed. There doesn't seem to be enough lights in the world to overcome the tint.

Why doesn't anyone have windows like those glasses people wear that get darker w/sunlight? I don't wear glasses so I'm not sure what they're called. I'm guessing now that I ask it someone will say that Agco tractors are available w/those windows.....only in Europe though.