 The Lexus RX 400h/RX 450h ranks as the top-selling Lexus hybrid with 363,000 units delivered worldwide , followed by the Lexus CT 200h with 290,800 units, and the Lexus ES 300h with 143,200 units.Japan has the largest hybrid electric vehicle fleet in the world, , a total of 7.51 million hybrids registered in the country, excluding kei cars.By 20106 it represented around 45% of cumulative global hybrid sales since their inception in 1997.