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as the colour is different from rest of the bodywork my guess would be in the real thing it will be tinted +++ glass and this has been painted as a cover up whilst testing. Mechanically one would expect the front panel to pop up at an angle as a wind deflector, and the two small panels concertena - stacking over the rear panel which would be tinted glass, but fixed.
I think I like that explanation. It does seem to fit what we are seeing. The fully opened position would almost double the size of the opening we now have with the existing sunroof.