Fender identification challenge - 930 fiber glass

[TopTuning]

Trying to figure out any story on these fenders I'm currently running.

* Came off some unknown race car (no history)

* Measure about 1/2 wider than a stock 930 turbo metal fender

* Rear fender opening fitment is wrong / abnormal shape

* One part fiberglass construction - looks to be pretty old


Probably going to replace these, but wondering the origin on these units...