The Toyota Prius is a hybrid electric mid size car. According to the USEPA, the 2008 Prius is the most fuel efficient car sold in the U.S.

The Prius first went on sale in Japan in 1997, making it the first mass-produced hybrid vehicle. In May 2008, worldwide cumulative sales of the Toyota Prius passed 1 million. The Prius is sold in more than 40 countries and regions, with its largest markets being those of Japan and North America.