The Japan-only Sai keeps the HS 250h's hybrid system that combines a 2.4-liter four-cylinder engine with an electric motor and a battery pack for a combined output of 190HP. Toyota says that its new hybrid model achieves a combined fuel economy in the Japanese cycle of 23km/lt which comes to around 4.3lt/100km or 54.1 mpg US.
The Sai goes on sale in Japan in early December with prices starting at 3.38 million yen ($37,200), compared with the Lexus HS250h's starting price of 3.96 million yen ($43,500).
All Photos Shot by our Tokyo Motor Show man, Phil Alex