Budd–Michelin rubber-tired rail cars remained obscure in comparison with other competitors for the title, such as the "Pioneer Zephyr" and Union Pacific's M-10000. Rubber-tired rail cars achieved greater success in France, and similar rubber-tired subway cars have been adopted in Canada and Mexico as well as on numerous systems in Europe. During the 1920s, the American Budd Company, at the time a relatively obscure auto-frame supplier, developed an extensive working relationship with the French firm Michelin, which was best known for its tires. In 1929, Michelin built its first rail car, and by 1932 nine of its cars were in operating service, all of
Diamond Rubber Company Diamond Rubber Company The Diamond Rubber Company was a manufacturer of vehicle tires and other rubber products at the end of the 19th, and into the early 20th century in the United States. The Diamond Rubber Company was incorporated in March of 1894 in Akron, Ohio by the owner of the Diamond Match Company, O.C. Barber. Barber had moved the match company plant to his adjacent self-named planned town of Barberton, Ohio in order to boost the town's economy which had taken a hit during the Panic of 1893. He decided to use the abandoned Diamond Match Company facility in