Honda has been the world's largest motorcycle manufacturer since 1959, as well as the world's largest manufacturer of internal combustion engines measured by volume, producing more than 14 million internal combustion engines each year. Honda surpassed Nissan in 2001 to become the second-largest Japanese automobile manufacturer. As of august 2008, Honda surpassed Chrysler as the fourth largest automobile manufacturer in the United States. Honda is the sixth largest automobile manufacturer in the world.