What you actually see here is a one-off submersible that is equally capable above the surface as it is underwater. For anyone who remembers the futuristic showcased in the James Bond film Spectre, there is now a rare opportunity to own one of the strangest and most ambitious vehicles ever built. Called the Scubacraft SC3, the experimental vessel was developed during the late 2000s as a functioning prototype that blurred the line between speedboat and personal submarine.
Unlike many fictional gadgets seen in Bond movies, the SC3 was not a movie prop designed solely for visual appeal. It was engineered as a real-world concept capable of operating both on the water’s surface and beneath it. The project reportedly attracted interest from the UK Special Boat Service and even DARPA because of its unconventional capabilities and military-style versatility before eventually making its way into the Bond universe. In Spectre, the matte-black machine appeared in Q’s workshop alongside the iconic Aston Martin DB10, instantly becoming one of the more memorable background vehicles in the film.
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Now heading to auction through Bonhams, the SC3 remains the only prototype ever produced, making it less of a practical recreational craft and more of a collectible piece of engineering history. Its rarity is amplified by the fact that no production version ever followed, despite the concept demonstrating genuine functionality both above and below the waterline.
On the surface, the SC3 behaves much like a high-performance jet boat. It is powered by a Kawasaki 1,498cc inline four-cylinder engine connected to a jet-drive propulsion system, allowing it to skim across the water at impressive speeds. The real transformation begins once the craft enters deeper waters. With the underwater mode activated, electrically powered thrusters take over while hydrodynamic control surfaces guide the vessel beneath the surface at speeds of around three knots.
Unlike traditional submarines, however, the SC3 does not feature a sealed or pressurized cabin. Occupants are exposed directly to the surrounding water and must wear full diving gear before submersion. This open-water diving approach significantly reduces complexity and weight while creating an experience closer to underwater flight than conventional submarine travel. The setup accommodates three people, including the driver and two passengers, all seated in exposed racing-style seats integrated into the craft’s lightweight body.
Visually, the SC3 still looks every bit like a futuristic Bond vehicle. The original composite plastic bodywork remains intact, paired with carbon-fiber construction elements and upholstered leather racing seats that reinforce its cinematic personality. Its aggressive low-slung silhouette, combined with stealth-inspired matte-black paintwork, gives it an appearance that still feels ahead of its time more than a decade after it was built.
Vehicles attempting to combine marine and underwater transportation are exceptionally rare because of the engineering compromises involved. The SC3 stands out precisely because it became a fully operational prototype rather than a concept sketch or film mock-up. That achievement alone makes it one of the most unusual experimental watercraft ever created and an undeniably fascinating piece of Bond-related automotive history.
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