Only few people, even in Europe or Germany, have ever heard about a McLaren Group C.
The car was built and raced by a well seasoned german who also raced Can-Am/Interseries from 1974 until recently.
The Group C, often referred to as "C8" was built in 1982 in Mainz on a new Trojan chassis. It's model name, as per vehicle pass is "Chevrolet McLaren C"
There are a few sites on the web who list the races it had participated in. It didn't score too much agaist the 962s, but it was fun. The wiki site is fairly accurate.
The car will be rebuilt this year with a 496 cui Chevrolet, as it was in the days. Most likely with an all ally engine and Kinsler or McKay fuel injection.
I searched this forum if I hadn't posted about this car earlier, and apologise if I created a double post. Attached are the oldest pics of the car, followed by a few later ones.
If I had the funds I would buy it and push for road registration and 450 kph on the German highway. What a blast!