I do agree with you on both the bus station and the car glass thing, nothing to actually comment about the bus thing because I currently have no ideas how to prevent those things.
The car glass part tho, I have looked at a number of factory released machines where you can customize whatever you want, add extra comfort or more colors or whatever functional things you want, but I have never seen a "sunglass" option, and I do understand it would be really expensive, not a lot of people would be able to afford it and no car should have it installed without a special request BUT there are thousands of people who pick all extras to their special factory released cars, making it sort of profitable I guess. Also I know a lot of people who cannot actually travel within those circumstances because of migraine headaches or some eye issues, so this could also possibly..fix that.
Nothing taken negatively, I like the discussion :P