Lexus is gearing up to reveal its new LS 500h flagship hybrid sedan at the Geneva Motor Show next month, which will feature the firm's latest Multi Stage Hybrid System, a technology that improves the performance and efficiency while providing a more refined driving experience. One of its most significant innovations is the ability to cruise at higher speeds. With the engine switched off, the LS 500h will continue using electric power at speeds up to 87 mph, making it an ideal highway cruiser.

The LS 500h will also benefit from improved throttle response for a better feel, particularly when pulling away whilst stationary, and will perform at lower revs when cruising at high speed too. This improved response is all thanks to a four-stage shift device added to the hybrid powertrain, which features two electric motors and a 3.5-liter V6 gasoline engine. If the technology sounds familiar, that's because it was first fitted to the stunning LC 500h luxury coupe. Lexus is so proud of the hybrid's four-stage shift device, it's claiming that it replicates the feel of the 10-speed automatic transmission fitted to the 3.5-liter, twin-turbo V6 Lexus LS 500.

Being fitted with the four-stage shift device will enable linear, direct and continuous acceleration that provides a "more rewarding driving experience". Further specifications have yet to be revealed, but it seems likely that the LS 500h will have more power than its LC 500h coupe equivalent, which is powered by a 3.5-liter V6 and an electric motor to produce a combined output of 354 horsepower. We'll find out more when the Lexus LS 500h is shown at Geneva next month.