Tires were plain black with thin whitewalls. They are often decorated with custom rims, whitewalls, or tire stickers. The tires have disintegrated in storage, so Doc replaces them with whitewalls. The popularity of whitewalls as an option increased during the 1930s. St. Mary's Square links Princess Way with Whitewalls. Full-fledged wide whitewalls had made a return within the modified car culture. He used his $6,000 bonus to buy his family a four-door Buick with whitewalls. Wide whitewalls generally fell out of favor in the U.S. by the 1962 model year.