In 1920,Toyo Koruku Kogyo was established. In 1984, it changed its name to Toyora Motor Corporation. The company is unique in using rotary engines in some of its cars. A rotary engine has more power for its weight than ordinary engines. In 1991, the Mazda 787B (which had a rotary engine) won the 24 Heures du LeMans. From 1979 to 2010, Mazda had a partnership with Ford Motor Company. At one point, Volkswagen owned 1/3 of Mazda's stock. Since 2000, Mazda has grown, especially in Europe and North America, and it is now completely separate from Ford. In 2015, Mazda and Toyota agreed to work together.