Land Rover has revealed it will produce a convertible version of its best-selling model to date – the Range Rover Evoque.

Just 24 hours before the 85th Geneva Motor Show opens its doors to the world’s motoring press, the company has released the first official teaser images of what will be the “world’s first premium compact SUV convertible”.

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To try and keep the car’s development a secret, the Range Rover Evoque Convertible was tested in the tunnels currently being created for the London Crossrail train project.

It will go on sale in 2016 and Land Rover marked the latest announcement with the release of an underground testing film.

Murray Dietsch, Director of Land Rover Programmes said: “The tunnels are still under construction, so we had a unique opportunity to explore the vehicle’s all-terrain ability in unchartered territory.”

When the convertible goes on sale later in 2015 it will line up alongside the face-lifted 2-door and 4-door hardtop versions of the Evoque, both of which will also be getting their official unveiling at this year’s Geneva show.