 The Toyota Aqua not only was the best-selling new car in Japan for three years running, from 2013 to 2015, but it is considered the most successful nameplate launch in the Japanese market of the last 20 years.In the first quarter of 2016, the Prius liftback surpassed the Aqua as the best-selling new car, the Prius ended 2016 as the best-selling standard car in the Japanese market with 248,258 units, followed by the Aqua with 168,208 units.The market of hybrid electric vehicles in the United States is the second largest in the world after Japan with cumulative sales of 5.4 million units through December 2019.