Yep, that is exactly what I did to my W222 sedan! this was much easier though....same process of scoring with the backside of a new exacto blade. As it is plastic though, it goes much faster. I did the same to the 996 and 997 targas as well and the C class coupe by Maisto. Even my Autoart CL55, CL63, and S63 AMG's have functional sunroofs. Those 3 were pretty simple/straightforward to make happen though.That 911's sunroof looks great. Maybe you can get a Norev W222 S-Class and mod it to do that.