My Saab 900 Turbo had factory gold tinting on all of its windows. I
always felt alert in that car, loved driving it long distances (12-14
hours behind the wheel), and I never felt tired at the end of such a
drive. By contrast, my BMW 530 with factory grey tinting on all windows
isn't quite in the same league as far as alertness and fatigue at the
end of a long drive goes. Both cars were driven with clear glasses as
well as neutral gray sunglasses.

I can't really insist that the difference is all due to tinting color,
but I think it's a factor.

-John


Eric Greenwell wrote:

Perhaps because hardly anyone gets to fly a glider with such a canopy?

I do wear brown tinted sunglasses, and I like them, but that doesn't
help me understand how having the whole canopy tinted like my sunglasses
is better than the sunglasses and a clear canopy.