Though the engine specifications were informed as similar to that of the XC90, a Supercharged and Turbocharged 2.0 liter T8 Twin Engine, powering the front wheels and a 79 hp electric motor powering the rear wheels is expected to be installed. Rumours about two diesel variants of the S90 would be powered by four cylinder units badged as D4 and D5.

The Shanghai Motor show 2011 showcased Volvo's large executive sedan from the Volvo Universe Concept, which is now rumoured to be the S90. Design and styling of the S90 is way beyond comparison. A stunning suicide-door concept which creates a distinctive pattern of styling, makes it more elegant and executive. The large sedan scores high in space and comfort. Long wheel-base ensures smoother drive and comfortable in-car experience for the passengers. The seemingly big rear and front portion of the sedan makes it stand head-to-head with its top luxury executive class sedan rivals. Pricing of the new flagship from Volvo has not yet been announced by the company, yet its expected to be fixed according to other executive sedan vehicles in its segment.