If the stock tint and glass don't cut it for you, you can simply add an interior tint or exterior vinyl layer. I'm not a fan of the glass roof, but if it's a problem, and that's a big if, then the solutions are many and easy. The Model 3 I drove on a sunny California day wasn't an issue whatsoever. I didn't even think, until after the drive, about the roof. That's how good it was.Firstly, I'm concerned about the degree of tinting and heat rejection of the glass roof...