A charging cable hanging out of a secondary filling cap over the left rear wheel arch exposes the all-new plug-in derivative, which is likely to wear Cayenne S E-Hybrid badges.
Reports claim the plug-in Cayenne will feature a new-generation hybrid system evolved from the one powering Porsche’s original plug-in production car, the Panamera S E-Hybrid, which pairs a supercharged 3.0-litre V6 with an electric motor for total outputs of 310kW and 590Nm and combined cycle fuel consumption of 3.1 litres per 100km.
The enhanced Porsche Cayenne range will also benefit from the brand’s twin-turbocharged 3.0-litre V6 petrol engine, which produces 313kW and 520Nm in the Panamera S.
Changes under the bonnet are accompanied by subtle visual tweaks, including to the bonnet itself – the leading edge of which now spans the entire space between smaller headlights which are disguised by stickers in these images.
The Cayenne’s front-end gains reshaped grille and intake openings, and a deeper front bumper with a lower chin. The side indicators migrate from their current positions on the front bumper at the top of the wheel arches to the wing mirrors.
Graphics disguise the Porsche’s new, slimmer tail-light fixtures, while a remodelled lower bumper and diffuser panel enhances the wider, slimmer look of the new rear-end.
The facelifted Porsche Cayenne range is expected to debut at September's Paris motor show before going on sale in Australia in 2015.
Click the Photos tab for more images of the 2015 Porsche Cayenne facelift and plug-in hybrid.