Onyx Concept has announced plans to offer a Porsche Panamera Onyx GST Edition.

The Stage One body kit (£11,599 / $16,999 / €12,999) includes new bumpers, revised side skirts and extended wheel arches. There's also a rear spoiler, a carbon fiber diffuser, custom exhaust tips and new daytime running lights.

Moving up to the Stage Two package (£16,199 / $23,599 / €17,999) adds a ventilated "SuperSport" hood, front fender vents, a roof-mounted fin and carbon fiber mirror caps.

Customers can also order a bespoke paint job, a quilted leather interior, carbon fiber trim and lamb's wool floor mats. Other options include carbon door handles, a sport steering wheel and 22-inch forged alloy wheels.

For added performance, Onyx Concept will offer a variety of engine upgrades. Detailed specifications haven't been announced but the Panamera Diesel can be tuned to produce 350 bhp (261 kW) while the Panamera Turbo can be massaged to develop 620 bhp (462 kW).

Gallery: Onyx Concept announces the Porsche Panamera Onyx GST

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