I obviously got something lost in translation
Porsche Motorsport make a modular headlight where the front plastic lens is a separate part from the light units behind. This is the part I am after.
The regulations I run with state that we need some lights on the front for wet race, but they do not need to be headlights. If you look at the picture from my car you can see that I run fog lights in the bumper and have fiberglass covers where the lights would be. I want to put the fog lights in the stock location behind the Porsche Motorsport lens - just like the 997 in the picture in my original post (although that car has led units in there I think)