Whitewall tires are a fashion statement. You either like'm or don't. If I owned a show queen classic car (Cadillac, Packard, Duesenberg, etc.) I might run whitewalls. But, my Model-A, no unless it came with them on it when I bought it. In the Model-A era whitewalls were seldom seen on lower cost cars. Occasionally maybe, but very rare.
Bob-A
"Skirts are for Women not Car Fenders"