2010 Lexus RX 450h
The 2010 Lexus RX 450h makes its world debut at the Los Angeles auto show.The RX is about due for an update, and Lexus promises the 2010 RX will be all-new and significantly improved. Toyota's luxury brand says the RX 450h hybrid will raise the bar for luxury, comfort, technology, safety, and efficiency; but no specific details have been released so far.

The 2010 Lexus RX450h hybrid is powered by a 3.5L Atkinson-cycle V-6 and the hybrid system receives a new, more powerful inverter that bumps total output to 297 hp, 27 hp more than the outgoing model. 275 hp comes from gasoline engine, with an additional 22 hp coming from the electric motor. In addition to boosting power, Lexus says they've also increased fuel mileage by 8%, though they did not give specific numbers. Based on an EPA-estimated 25 mpg average for the outgoing RX400h, the 2010 RX450h should return roughly 27 mpg on average. The RX450h will be available in both 2WD and part-time AWD, with the AWD system returning slightly poorer fuel economy.