The document discusses the automotive cluster in the Greater Toronto Area (GTA). It notes that the GTA is home to major automakers like General Motors, Ford, and DaimlerChrysler, which operate six assembly plants in the region. More than 700 parts manufacturers support the automotive industry in the GTA. Together, GTA automotive companies employ around 50,000 workers, second only to Detroit, and produce over 1.1 million vehicles per year, making the GTA the second largest automotive cluster in North America. The document also briefly mentions trends like the increasing popularity of four-cylinder engines and news about individual automakers' new vehicle launches or production changes.