FYI, there's a thread in the 944T board here, someone is looking at building rear seat shelves to replace the rear seats, a la the CS cars.

 

That would be me.
I am going to replicate the rear shelf like in the 968 club sports. There are more details in the 944 turbo forum like Damian said, but here are a few pictures showing an example. I've found a source for OEM carpet so they will be availible in all factory colors. I hope to have them availible after X-mas.....maybe sooner.