Roewe, SAIC’s premium brand which owns the tooling rights to the Rover 75 platform, has brought out a sporting variant of its compact sedan, dubbed the 550 RS. In keeping with Shanghai Motor Show tradition thus far, little is known about what lies beneath the hood of the RS, but with the standard 550 packing updated versions of either the 1.6- or 1.8-liter Rover K-series four-cylinders, we suspect the RS’ “performance” mods are limited to the decklid wing, roof aerofoil, side skirts and the matte.