Toyota’s luxury division Lexus has unveiled the hybrid version of the new GS sedan at the ongoing 2011 Frankfurt Auto Show. This is the fourth generation of the GS 450h and features a revised and upgraded hybrid powertrain.

The new GS 450h is powered by the second generation Lexus Hybrid drive system. This system comprises of a front mounted 3.5-liter V6 engine running on the Atkinson cycle coupled with an electric motor that drives the rear wheels. An Electronically Controlled Continuously Variable Transmission (E-CVT) is the only transmission option for this car. The hybrid powertrain is capable of producing 338 bhp and 254 lb-ft of torque. The time taken for a standard 0 to 62 mph sprint is 5.9 seconds and the top-speed of the car has been electronically limited to 131 mph.

Lexus has claimed that the revised hybrid powertrain delivers the same performance as that of a conventional V8 gasoline engine, but with significant reduction in emission and fuel consumption. The fuel economy of the new GS 450h has improved by 30 percent in comparison to the outgoing model.

The car features a reengineered chassis and improved driving dynamics, thanks to advanced technologies such as Active Variable Suspension (AVS) and Dynamic Rear Steering (DRS). The AVS, DRS, variable gear-ratio steering and Lexus’ Vehicle Dynamics Integrated Management is integrated by the Lexus Dynamic Handling System for smooth and better handling. Safety features incorporated in this car include a pre-crash safety system, Lane-Keep Assist (LKA), blind-spot monitor, Lexus’ Night View system and a head-up display.

The new Lexus GS 450h is expected to hit the US market in early 2012.