Quote Originally Posted by rally037 View Post
I didn't know the 037 had a Group 4 version considering it was the first proper Group B rally car.

I tried to start a new thread on my project, but I guess it will take some time before that gets approved and posted on the forum.
No, you said "related", so it was the nearest thing I could think of.
There was such a thing. Stig Blomqvist won the 1979 Janner Rally in one.

I'll stop guessing.