Rare 928 model

Hello everyone,
I'm not a 928 owner but a scale model builder working on a new project. 
I have a 1/24 scale Burago model of a 928 with very wide wings,  looks like a former group 5 specs or maybe Imsa but Google brings no results... Might be an invention of burago of a car that never existed in real life ???? Big mystery to me... Anybody ever seen this specific model before???

There have been many custom exotic car builders that modified Porsche 928s.  Strosek was one, it looks similar to the model that you have.

1000sel.com/index.php/strosek/porsche-928-bodykits