The stock of new energy vehicles in China is the world's largest, with cumulative sales of 5.5 million units through December 2020. These figures include passenger cars and heavy-duty commercial vehicles such buses and sanitation trucks, and only accounts for vehicles manufactured in the country. Of these, there were 4.9 million new energy vehicles in use at the end of 2020, accounting for 1.75% of all vehicles in circulation in China.