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
Goodyear Dunlop Sava Tires (by Dębica), France (by Goodyear and Dunlop), Turkey (by Goodyear) and Germany (by Fulda and Dunlop). Goodyear Dunlop Sava Tires Sava Tires is a Slovenian tyre and other rubber related products manufacturer, it is now a subsidiary of the Goodyear Tyre and Rubber Company. It is located in Kranj, Slovenia. The company was formed in 1998 under the name "Sava Tyres" d.o.o., although tyre manufacturing had started in 1920. It employs over 1,400 people. It is one of the biggest and most successful Slovenian companies. Since 2006, the company is part of Goodyear Dunlop Central & South-East Europe organisation, the