I was happy to find this discussion thread. So many people state that Tesla glass other than than the roof offers limited UV protection especially when it comes to UV-A. That does not appear to be true. The Tesla Model Y manual (2023) for one states: "The roof, windshields, and windows in Model Y are excellent at protecting you from UV (ultraviolet) rays. The glass components score less than 2 on the UV Index scale. Review your region’s UV Index specifications for more information. You are still responsible for taking the necessary precautions for sun protection." - It's in the glass section. While the level of IR rejection can be more debatable, it seems we are protected from all UV rays (i.e. UV A,B,&C). To me that means that tinting would be more applicable for reasons outside of UV protection.