Witnessed a car crash a few years ago right in front of me because of this. I was the second car in line heading south at a traffic light. When our light turned green, a car heading west in the late afternoon ran the red light and smashed into the car in front of me.
I saw them coming and said, "Watch out!" but of course that did no good. The driver of the westbound car said she lost the traffic light in the sun and didn't realize it was red. I have no idea why you'd continue on at 40 mph if you weren't sure you had a green light, but here we are.
I had chosen that route home intentionally to avoid driving into the sun. Had I been the first car in that line, I might have been involved in the crash despite my caution.
