I was thinking about the Dauer but you already posted it.
Back in 1989 I was in Munich visiting the KOENIG 'factory'....Incredible(KOENIG Competition, Ferrari Testarossa based 1000BHP twinturbo)
Plus Vern Shuppan also raced 956(and 962s?) back in the 80's if I'm not mistaken.
Thanks for sharing.
It also reminds me of this daily Maserati MC12(god I love this car so much). From 1:07mins:
I cannot embed it???