The five largest automotive manufacturer groups as of 2015 are Toyota, General Motors, Volkswagen, Hyundai and Ford. Toyota is the largest manufacturer both in terms of total vehicles produced and in total sales. In addition to being the largest manufacturers overall, many of these companies include highly innovative and influential brand groups, such as the Porsche and Audi brands incorporated into the Volkswagen Auto Group.
The Toyota Motor Corporation leads overall production and sales largely due to a focus on high-quality consumer automobiles rather than luxury vehicles, though the company does maintain luxury brands such as Lexus in some countries. A major contributor to the company's worldwide sales numbers is the Toyota Corolla sedan, the best-selling car of all time worldwide. Toyota Motor Corporation also holds stakes in several other motor vehicle manufacturers, including one-sixth of Subaru parent company Fuji Heavy Industries and a 51 percent share of small car manufacturer Daihatsu.
The Volkswagen Group is third worldwide in terms of total production, partially due to a focus on more luxurious vehicles sold under the lower-volume Porsche and Audi brands as compared to Toyota or second-place General Motors. However, Volkswagen has a long-standing tradition of producing popular consumer cars, as the Type I Volkswagen Beetle was the best-selling car of all time until finally overtaken by the Corolla in the mid-2000s. Volkswagen's luxury-focused divisions are well-known as innovators in performance technology, though the company was enveloped in a scandal regarding allegedly fraudulent emission control systems in its diesel automobiles in mid-2015.