CF hardtop... Great for trackdays
I recently bought what looks like the same product from:
Lotus Elise Lightweight Carbon Fiber Hardtop
It's a beautiful top, fits a helmet really well for track days but it's quite thin so no acoustic benefits and leaves a big gap by the window so not so good for rain either.
Installation is a little tricky, you have to drill the inside center of the front soft top arch brackets (super easy with a dremel). This doesn't affect the softtop and it's not really visible so no problem there.
The back part is a little trickier, you have to cut two holes in the rear arch cover, remove two bolts and replace them. I couldn't get the arch cover off (weird pressure fit plastic screws that just kept turning without coming out) so I eyeballed it and used a dremmel with drill bit to find the right spot. It worked great hit the area with the bolt easily and saved myself form a painful removal process.
My car is in storage for the winter or I would take some pics of the setup. Here is the outside look: