Hi,
The windows on the cabriolet and coupe are identical, which means removing the
chrome on the rear windows is the same PITA work on both types.
The chrome is pressed onto the windows and there is a U shaped rubber seal protecting the glass edge of the window. The rubber hardens and makes removal of the chrome
a bit tricky. The molding is brass and relatively soft, so try start prying (using some non-metal) at the ends to see if you can get a gap to work with. Applying some gentle heat might help during that part.
Getting them back on with new rubber is even worse. :-)
Thankfully I haven't had the "pleasure" of doing this in a long time.
Regards,
Hans