Question: In the 1989 Barber Saab Pro Series season are cars were shod by an American multinational tire manufacturing company founded in what year?

full_context: Document 1: 1987 Barber Saab Pro Series: The 1987 Barber Saab Pro Series season was the second season of the series. All drivers used Saab powered BFGoodrich shod Mondiale chassis. Ken Murillo won the championship.
Document 2: BFGoodrich: BFGoodrich is an American tire company. Originally part of the industrial conglomerate Goodrich Corporation, it was acquired in 1990 (along with Uniroyal, then The Uniroyal Goodrich Tire Company) by the French tire maker Michelin. Prior to the sale, BFGoodrich was the first American tire manufacturer to make radial tires. It made tires for the then new Winton car from Winton Motor Carriage Company.
Document 3: M-class blimp: The Goodyear Aircraft Company of Akron, Ohio built the M-class blimp for the US Navy as the follow-on to the K-class anti-submarine warfare blimp used during World War II. It was a significantly larger airship. Four airships, designated M-1 through M-4, were delivered in early 1944. Operations of K-ships in tropical regions had shown a need for a blimp with greater volume to offset the loss of lift due to high ambient temperatures.
Document 4: 1989 Barber Saab Pro Series: The 1989 Barber Saab Pro Series season was the fourth season of the series. All drivers used Saab powered Goodyear shod Mondiale chassis. Robbie Buhl won the championship.
Document 5: Firestone and Ford tire controversy: The Firestone and Ford tire controversy was a period of unusually high failures of P235/75R15 ATX, ATX II, and Wilderness AT tires installed on the Ford Explorer and other related vehicles.
Document 6: 1993 Barber Saab Pro Series: The 1993 Barber Saab Pro Series season was the ninth season of the series. Zerex continued to support the racing series. All drivers used Saab powered Goodyear shod Mondiale chassis. Swede Kenny Bräck won the championship. Bräck raced in the International Formula 3000 the following season.
Document 7: Continental AG: Continental AG, commonly known as Continental, is a leading German automotive manufacturing company specialising in tyres, brake systems, interior electronics, automotive safety, powertrain and chassis components, tachographs, and other parts for the automotive and transportation industries. Continental is based in Hanover, Lower Saxony, Germany. Continental is the world's fourth-largest tyre manufacturer. Continental was founded in 1871 as a rubber manufacturer, "Continental-Caoutchouc und Gutta-Percha Compagnie". After acquiring Siemens AG's VDO automotive unit in 2007 Continental was ranked third in global OEM automotive parts sales in 2012 according to a study sponsored by PricewaterhouseCoopers.
Document 8: Omni United: Omni United Pte. Ltd is a tire manufacturer and distributor headquartered in Singapore. The company designs and produces tires in partnership with manufacturers based in the United States, China, India, Indonesia and Thailand. Omni United owns the Radar, Patriot and Corsa brand names, and markets, sells and distributes several other brand names. The company was founded in 2003 by G.S. Sareen, who prior to founding Omni United, was an entrepreneur in the e-commerce industry . Omni United sells in excess of 6.5 million units of passenger and light truck tires a year in 80 countries. The company has been called the ‘IKEA of Tires' and currently sells more than two million units of passenger and light truck tires a year in the United States.
Document 9: 1988 Barber Saab Pro Series: The 1988 Barber Saab Pro Series season was the third season of the series. All drivers used Saab powered Mondiale chassis. BFGoodrich radial tyres were replaced by Goodyear Eagle slicks. Bruce Feldman won the championship.
Document 10: 1991 Barber Saab Pro Series: The 1991 Barber Saab Pro Series season was the fifth season of the series. This was the first season the class had a had a title sponsor, Zerex. All drivers used Saab powered Goodyear shod Mondiale chassis. Bryan Herta won the championship.
Document 11: Gates Corporation: Gates Corporation, based in Denver, Colorado USA, is a manufacturer of power transmission belts and a manufacturer of fluid power products. The company’s products are used in diverse industrial and automotive applications where the cost of failure is very high relative to the cost of the products. The company employs over 14,000 staff and has sales and manufacturing operations in all of the world's major markets, including North and South America, Europe, Asia, Australia, and the Middle East.
Document 12: 1994 Barber Saab Pro Series: The 1994 Barber Saab Pro Series season was the tenth season of the series. All drivers used Saab powered Goodyear shod Mondiale chassis. 1994 was the final season the Saab H engine was used. Diego Guzman won the championship.
Document 13: Goodyear Tire and Rubber Company: The Goodyear Tire & Rubber Company is an American multinational tire manufacturing company founded in 1898 by Frank Seiberling and based in Akron, Ohio. Goodyear manufactures tires for automobiles, commercial trucks, light trucks, motorcycles, SUVs, race cars, airplanes, farm equipment and heavy earth-mover machinery.
Document 14: 1990 Barber Saab Pro Series: The 1990 Barber Saab Pro Series season was the fifth season of the series. All drivers used Saab powered Goodyear shod Mondiale chassis. Rob Wilson won the championship. Wilson was the first non-American to win the Barber Saab Pro Series.
Document 15: Pirelli: Pirelli & C. S.p.A. is a multinational company based in Milan, Italy, formerly listed on the Milan Stock Exchange since 1922, but now an overseas subsidiary of Chinese state-owned enterprise ChemChina. The company is one of the largest tyre manufacturers behind Bridgestone, Michelin, Continental and Goodyear. It is present in over 160 countries, has 19 manufacturing sites in 13 countries and a network of around 12,500 distributors and retailers.
ground_truth: 1898