The "Pangra" was a 70's 'styling kit' fiberglass package to make your Pinto look 'cool', or exotic, or something (I actually like the first couple years of Pintos; small back window, thin bumpers, sub-2000 lb. weight, and a 100hp stock (with the right motor).
Grey wheels would look best on a yellow car. What shade of yellow? Primrose, school bus, banana? Dark grey works with the school bus yellows.