The Toyota Prius is a full hybrid electric mid-size hatchback, formerly a compact sedan, developed and manufactured by Toyota. The United States Environmental Protection Agency and California Air Resources Board (CARB) rate the Prius as among the cleanest vehicles sold in the United States based on smog-forming emissions. The 2016 model year Prius Eco ranks as the all-time most fuel efficient gasoline-powered car available in the US without plug-in capability.
The Prius first went on sale in Japan in 1997, and was available at all four Toyota Japan dealerships, making it the first mass-produced hybrid vehicle. It was subsequently introduced worldwide in 2000.The Prius is sold in over 90 markets, with Japan and the United States being its largest markets. Global cumulative Prius liftback sales reached the milestone 1 million vehicle mark in May 2008,2 million in September 2010, and passed the 3 million mark in June 2013. Cumulative sales of 1 million Priuses were achieved in the US by early April 2011, and Japan reached the 1 million mark in August 2011.
In 2011, Toyota expanded the Prius family to include the Prius v, an extended hatchback wagon, and the Prius c, a subcompact hatchback. The production version of the Prius plug-in hybrid was released in 2012. The second generation of the plug-in variant, the Prius Prime, is schedule to be released by the end of 2016. Toyota expects the Prime to achieve the highest miles per gallon equivalent (MPGe) rating in all-electric mode of any plug-in hybrid available in the market. Global sales of the Prius c variant passed the 1 million mark during the first half of 2015. The Prius family totaled global cumulative sales of 5.2 million units in July 2015, representing 65.4% of the 8 million hybrids sold worldwide by Toyota since 1997.