I have now seen the pictures which I didn't spot before my last post.
That ain't no GTD I would recognise. I won't even start to list the items which do not match standard GTD items. Inside, outside, chassis, front, rear, all non GTD points.
Bid for the car but I would not say that is a GTD as I would expect one to be of that vintage. It still may be a fine car but you need to judge that on its own merits.