2010 Lexus RX450h

2010 Lexus RX450h

Lexus debuted the second generation RX hybrid, the RX 450h, at the Greater Los Angeles Auto Show in November 2008. The RX 450h was premiered alongside its non-hybrid equivalent, the third generation RX 350.

Both models were introduced in 2009 as 2010 model year vehicles, with a hybrid concept vehicle, the LF-Xh, previewing their design direction at international auto shows a year prior.

The RX 450h was expected to go on sale in the U.S. in mid to late 2009, with sales introductions for the RX 450h in Asia (including Japan) and Europe in the same year.

The Review

Powertrain

The RX 450h features an upgraded 3.5 L 2GR-FE V6 engine (shared with the RX 350) which produces 245 hp (183 kW), along with a new inverter which boosts total horsepower to 297 hp (221 kW) (with the electric motors providing an added 22 hp (16 kW)).

Up to three electric motors are used in the hybrid system, including two dual motors for the forward wheels, and a third for the rear wheels on the AWD model (which engages when slippage is detected or the throttle engaged firmly).

Fuel efficiency, according to EPA testing, is increased by twenty percent over the previous RX 400h.