Land Rover is calling its soft-top Evoque a "concept only" as it prepares to unveil it at the Geneva motor show next Tuesday.
But the vehicle is actually close to production because the four-wheel-drive specialist has already developed a roll-over protection system for it.
The system is much the same everywhere: stainless-steel hoops behind the four seats instantly pop up above head level if sensors detect the the vehicle is about to turn turtle.
Land Rover is expected to announce within a month when the Evoque convertible will go into production. It first wants to gauge public reaction at Geneva.
The drop-top was developed under the guidance of Land Rover design director Gerry McGovern, who has called it "the world's first premium convertible SUV".
Land Rover does not regard the left-hand-drive-only Nissan Murano CrossCabriolet as being in the same class. The Nissan went on sale in the US last year.