It is called a panoramic roof, and from what I can see, I see out day or night, even when it is bad weather. It is also a bit nicer than the solid roof too. If you are unable to see out and only see your reflection, maybe someone put some sort of coating on it ??
Well... that is generally what happens when you have a smooth, shiny surface. Pretty sure every sunroof is exactly the same. Main difference being in most cars with a typical "sunroof", if you look up, you're usually still looking at the headliner of the car.
But yea... like the others said... i still see sky, can see airplanes and birds flying overhead... and in the 453, that reflection can be practical, too. Like how if i look in the front passenger side corner of the roof of my car, I can see the reflection of the passenger side mirror, which gives me a direct line of sight down the side of the car to the pavement so i can see just how close to a curb I am parked.