Range Rover specialist Overfinch has revealed a limited-edition package for the long-wheelbase Range Rover Autobiography.

Dubbed the Sandringham Edition, just five of these units will be produced for the North American market, each featuring refinements to the interior and exterior.

On the outside, the Sandringham Edition is finished in Nebula Black paint, which boasts a purple fleck that shows up in direct light. This is joined by a carbon-fibre body kit consisting of a custom front bumper and fender set with LED DRLs and additional air intakes with a carbon-fibre weave. The custom grille uses a combination of carbon-fibre and chrome.

At the rear, the Range Rover has been kitted out with Overfinch’s engraved tailpipes, which slot into a carbon-fibre rear undertray assembly. A signature tailgate plinth with an Overfinch blade inlay is accompanied by a carbon-fibre roof spoiler. The visuals have been rounded off with a set of 22-inch Centaur diamond-turned alloy wheels with colour-coded Nebula Black inner spokes and black brake callipers.

The dark exterior theme contrasts with the interior’s Capiz White and Calluna leather upholstery with Argento pinstripe veneers. The Lumière diamond-quilt leather seats have been perforated and feature contrast micro-piping and stitching with a matching diamond headliner motif.

Further enhancing the cabin experience is Overfinch’s knurled interior touchpack and illuminated sill plates. This consists of a machined rotary gear selector, armrest adjusters, dashboard inserts and door handles. A commissioning plaque is also inserted to further enhance exclusivity.

No adjustments have been made to the Range Rover’s performance, but the supercharged 5,0-litre V8’s aural presence is amplified by a stainless-steel variable valve exhaust system which can be controlled via a smartphone app.