As a full hybrid, the RX 450h can operate in electric only, gas engine only, or combine the power of both. The 3.5-liter V6 gas engine and electric motors provide a combined 295-hp. The hybrid drivetrain is said to offer V8 performance with four-cylinder fuel economy. All that power is fed through a 6-speed Multi-mode automatic transmission with sequential shift control. Front-wheel drive or all-wheel drive configurations are available. Standard features include automatic climate control, push-button start with smart keyless entry, automatic headlamps, 18-inch aluminum wheels, ten airbags, active front head restraints and leather trim on the steering wheel and shift knob. The RX 450h is unchanged for 2012.