Question: Western Star Trucks is a subsidiary of which German multinational company?

full_context: Document 1: Dachser: DACHSER Group SE & Co. KG is a German logistics company, founded by Thomas Dachser in 1930, with its headquarters in Kempten in the Allgäu region. In January 2005, Thomas Dachser’s grandson, Bernhard Simon, took over as Head of the Management Board. DACHSER is involved in the European Logistics, Air & Sea Logistics and Food Logistics business segments. In contract logistics, the group provides transport, warehousing and value-added services and DACHSER is one of the world market leaders in system logistics.
Document 2: Porsche: Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche AG (] ), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans. Porsche AG is headquartered in Stuttgart, and is owned by Volkswagen AG, which is itself majority-owned by Porsche Automobil Holding SE. Porsche's current lineup includes the 718 Boxster/Cayman, 911, Panamera, Macan and Cayenne.
Document 3: Ford Motor Company: The Ford Motor Company (commonly referred to simply as "Ford") is an American multinational automaker headquartered in Dearborn, Michigan, a suburb of Detroit. It was founded by Henry Ford and incorporated on June 16, 1903. The company sells automobiles and commercial vehicles under the Ford brand and most luxury cars under the Lincoln brand. Ford also owns Brazilian SUV manufacturer, Troller, and Australian performance car manufacturer FPV. In the past, it has also produced tractors and automotive components. Ford owns an 8% stake in Aston Martin of the United Kingdom, and a 49% stake in Jiangling of China. It also has a number of joint-ventures, one in China (Changan Ford), one in Taiwan (Ford Lio Ho), one in Thailand (AutoAlliance Thailand), one in Turkey (Ford Otosan), and one in Russia (Ford Sollers). It is listed on the New York Stock Exchange and is controlled by the Ford family, although they have minority ownership (but majority of the voting power).
Document 4: Smart (marque): smart Automobile (stylized and marketed as "smart") is a German automotive marque and division of Daimler AG, based in Böblingen, Germany. It ranges in microcars and subcompacts, primarily the Fortwo and Forfour with its primary assembly plants located in Hambach, France and Novo Mesto, Slovenia. Marketed in 46 countries in Asia, North and South America, Africa, Australia and Europe, production of the Fortwo had surpassed 1.7M units by early 2015.
Document 5: BYD Auto: BYD Auto Co., Ltd. is a Chinese automobile manufacturer based in Xi'an, Shaanxi Province, and a wholly owned subsidiary of BYD Company. It was founded in 2003, following BYD Company's acquisition of Tsinchuan Automobile Company in 2002. Its principal activity is the design, development, manufacture and distribution of passenger cars and buses sold under the BYD brand. BYD has achieved top rankings of J.D Power's Quality Study. BYD has been awarded The Top Crash Facility Award. It also has a 50:50 joint venture with Daimler AG, Shenzhen BYD Daimler New Technology Co., Ltd., which develops and manufactures luxury electric cars sold under the Denza brand.
Document 6: Brabus: BRABUS GmbH, founded 1977 in Bottrop (Ruhr Area), Germany, is a high-performance aftermarket tuning company which specializes in Mercedes-Benz, Smart, Tesla and Maybach vehicles. Brabus became the largest Mercedes tuner, other than Mercedes-AMG which became a DaimlerChrysler affiliate in the 1990s.
Document 7: Chrysler: FCA US LLC (also called Fiat Chrysler or Chrysler) ( ) is the American subsidiary of Fiat Chrysler Automobiles N.V., an Italian controlled automobile manufacturer registered in the Netherlands with headquarters in London, U.K., for tax purposes. FCA US is one of the "Big Three" American automobile manufacturers. FCA US has its headquarters in Auburn Hills, Michigan and sells vehicles worldwide under its flagship Chrysler brand, as well as the Dodge, Jeep, and Ram Trucks. Other major divisions include Mopar, its automotive parts and accessories division, and SRT, its performance automobile division.
Document 8: Volkswagen Truck &amp; Bus GmbH: Volkswagen Truck & Bus GmbH is a wholly owned subsidiary of Volkswagen AG and a leading commercial vehicle manufacturer worldwide with its MAN, Scania, and Volkswagen Caminhões e Ônibus brands. At IAA Nutzfahrzeuge 2016 its open and cloud-based digital brand RIO was launched. In 2015, Volkswagen Truck & Bus GmbH's brands sold around 180,000 vehicles in total. Its offering ranges from light, medium- and heavy-duty trucks through transporters, vans and buses which are produced at 25 sites in 17 countries. The Company had a workforce of around 76,000 worldwide across its commercial vehicle brands as of December 31, 2015. The Brand Volkswagen Commercial Vehicles is a legal part of Volkswagen AG and an associated, fully integrated partner of Volkswagen Truck & Bus GmbH.
Document 9: General Motors: General Motors Company, commonly known as GM, is an American multinational corporation headquartered in Detroit, Michigan, that designs, manufactures, markets, and distributes vehicles and vehicle parts, and sells financial services. With global headquarters at the Renaissance Center in Detroit, Michigan, United States, GM manufactures cars and trucks in 35 countries. In 2008, 8.35 million GM cars and trucks were sold globally under various brands. GM reached the milestone of selling 10 million vehicles in 2016. Current auto brands are Buick, Cadillac, Chevrolet, GMC, Holden, and Wuling. Former GM automotive brands include McLaughlin, Oakland, Oldsmobile, Pontiac, Hummer, Saab, Saturn, as well as Vauxhall, and Opel, which were bought by Groupe PSA in 2017.
Document 10: Western Star Trucks: Western Star Trucks Sales, Inc., commonly designated Western Star, is an American truck manufacturer headquartered in Portland, Oregon, United States and a subsidiary of Daimler Trucks North America, in turn a wholly owned subsidiary of the German Daimler AG.
Document 11: Volkswagen Commercial Vehicles: Volkswagen Commercial Vehicles (VWCV) (German: Volkswagen Nutzfahrzeuge , ] ; German abbreviation: "VWN", ] ) is a German multinational commercial vehicles manufacturer headquartered in Hannover, Lower Saxony, Germany, and a wholly owned subsidiary of Volkswagen Group. Originally part of Volkswagen Passenger Cars, it has operated as a separate marque and company since 1995.
Document 12: DAF Trucks: DAF Trucks NV is a Dutch truck manufacturing company and a division of Paccar. Its headquarters and main plant are in Eindhoven. Cabs and axle assemblies are produced at its Westerlo plant in Belgium. Some of the truck models sold with the DAF brand are designed and built by Leyland Trucks at their Farington plant in Leyland near Preston, England.
Document 13: Car2Go: car2go is a German car rental company. It is a subsidiary of Daimler AG providing carsharing services in European and North American cities. The company offers exclusively Smart Fortwo and Mercedes-Benz vehicles and features one-way point-to-point rentals. Users are charged by the minute, with hourly and daily rates available. The service forgoes the typical centralized rental office, and cars are user-accessed via a downloadable smartphone app wherever they are parked. As of July 2017, car2go is the largest carsharing company in the world with 2,500,000 registered members and a fleet of nearly 14,000 vehicles in 26 locations in North America, Europe and Asia.
Document 14: Daimler AG: Daimler AG (] ) is a German multinational automotive corporation. Daimler AG is headquartered in Stuttgart, Baden-Württemberg, Germany. As of 2014, Daimler owns or has shares in a number of car, bus, truck and motorcycle brands including Mercedes-Benz, Mercedes-AMG, Smart Automobile, Detroit Diesel, Freightliner, Western Star, Thomas Built Buses, Setra, BharatBenz, Mitsubishi Fuso, MV Agusta as well as shares in Denza, KAMAZ, Beijing Automotive Group. The luxury Maybach brand was terminated at the end of 2012, but revived in April 2015 as "Mercedes-Maybach" versions of the Mercedes-Benz S-Class and G-Class. In 2016 Daimler sold 3.0 million vehicles. By unit sales, Daimler is the thirteenth-largest car manufacturer and is the largest truck manufacturer in the world. In addition to automobiles, Daimler manufactures buses and provides financial services through its Daimler Financial Services arm. The company is a component of the Euro Stoxx 50 stock market index.
Document 15: Leyland Trucks: Leyland Trucks is the leading medium and heavy duty truck manufacturer in the United Kingdom, and is based in the town of Leyland, Lancashire. It emerged from the bankruptcy of DAF NV as the result of a management buy out in June 1993, and was acquired by Paccar in June 1998, of which it is now a subsidiary.
ground_truth: Daimler AG