Magnus Walker Urban Outlaw Porsche 911 934 Turbo RSR
68 of 365 in silver with red and blue graphics
A purpose built race car, the 934 RSR was created for group 4 GT racing. Although a 930 shell was the base, basically nothing else from a production 930 turbo was used.
I can't verify that Magnus Walker built this tribute car but you can ask him, he seemed like a very chill and friendly guy when I talked to him at Amelia Island.