Back Windows Screen needed for sun and night driving?

[NeverFollow]

Don't you think that a screen would be nice to have to protect from sun, night driving, or just more privacy?

 

[araxara]

In some of the test drive videos it was mentioned that Tesa has learned a lot from the Model X and has special glass that is multilayered and both absorbs and reflects UV. I believe that these early cars are not an indication of what will be in the production cars. I believe they will have darker glass, like they do on the Model X.