2006 Lexus RX

The Lexus RX 400h is the first luxury sport utility vehicle equipped with a hybrid powertrain. It features a version of parent company Toyotas Hybrid Synergy Drive technology thats been modified for SUV duty. Changes include the installation of a new battery, the 3.3-liter V-6 from the RX 330 and a more powerful electric motor that can operate at 12,000 rpm thats twice the top speed of the motor used in the Toyota Prius hybrid.