The Sai is powered by a 2.4l engine, developing 150 PS at 6,000 rpm, paired with an electric motor which develops an extra 140 hp. Together, the two drive units, which draw their power from a nickel-metal battery, allow the Sai to achieve 54 mpg (4.3l/100 km). The fuel economy rating allows the Sai to be compliant with 2015 Japanese regulations (75 percent lower CO2 emissions than in 2005).
From the visual standpoint, the Sai is not exactly an eye catcher. The car's design is based on Toyota's Vibrant Clarity" vision, seen in the Prius
On the interior, the Sai welcomes the driver with a "driver-focused" cockpit, boasting a display zone (info and operation options), a navigation screen, and the shift-by-wire Shift-matic lever, positioned next to the steering wheel.
As an interesting feature for the Sai, the front-passenger seat slides down and to the outside of the car. An optional wheelchair loading/unloading mechanism can also be featured on the Sai.
From the safety standpoint, the Sai comes equipped with Pre-crash Safety System and seven airbags as standard on all models.
The new hybrid will be offered in two trim levels, S and G. The car will be on display at the 2009 Tokyo Motor Show.