Now add to that mix greater thrust, faster merging and less time spent at the gas station, and it's easy to see why the 270-horsepower 2005 Lexus RX 400h will garner attention and deplete bank accounts. Thanks to the electric motor that augments the standard RX 330's 3.3-liter V6, this hybrid powertrain makes 40 more horsepower than the standard setup. To recharge the electric motor's battery pack on the fly, the RX 400h uses a regenerative braking system to capture the energy created by braking, which normally gets wasted in the form of heat. All of this techno-wizardry results in an average fuel economy rating of 27.6 mpg while simultaneously accelerating to 60 mph in less than eight seconds. Not too shabby for a vehicle that will take you more than 600 miles on a single tank of gas and is rated a Super Ultra Low Emission Vehicle (SULEV). A continuously variable transmission (CVT) ships the power to the front or all four wheels.