The sunroof in my Peugeot will either tilt or slide right back so that you just have a hole in the roof. I've been running it in the latter mode quite a lot since the aircon failed and they told me it would cost £600 to repair it.

When I was moving house the weather was sunny, and I ran around like that all day for days, taking stuff to the coup, running back and forwards the 30 miles between old and new houses and so on. When I got back to work, I was accused of having spent the time off sunbathing, as I'd got quite a tan!
It also has a sliding panel in the same finish as the roof, that blocks it off completely if you want. I do that after dark unless it's a very clear night.
This car is over 11 years old, and if the Mk VI's isn't at least as sophisticated I'll be very disappointed.
Mind you, my old 1993 XR2 had a thing that just tilted, and had no shutter panel, and it wasn't a lot of cop except to let a bit of light in whether you wanted it or not. That car had no aircon either, and I was glad to get shot of it.
Rolfe.