[QUOTE=LeMansX5;715434]Looks nice. Is the surface smooth or there is possibility that dust and dirt can stick in?
The one on M6 is smooth and shiny.

I made a test on a small left-over of film waxing it and then removing the wax and there is no "sticking" on it, that is good news for me, so I assume I will have not much trouble

The M3 and M6 roof's are clear coated, so it shines like regular paint, mine is kind of matt and glossy combination