Inside the £4,300,000 'Underwater Supercar' That Can Reach Depths of 300 Metres
Meet the Super Sub, a sleek submarine that has been dubbed the underwater supercar for its high-performance capabilities and luxurious design. This $5.75 million (£4.3 million) craft is officially the world's fastest submersible, boasting a top speed of nine knots, equivalent to 10 miles per hour, which matches the cruising pace of a dolphin.
Unprecedented Speed and Depth Capabilities
The Super Sub can transport three people to an impressive operational depth of 300 metres, offering extended exploration opportunities in the ocean's depths. After successfully completing intensive sea trials, it is now poised for action and will soon be integrated into a billionaire's luxury yacht, marking a significant milestone in underwater technology.
Manufacturer U-Boat Worx conducted rigorous testing off the coast of Curaçao, an island located north of Venezuela, to put the vessel through its paces. Engineers meticulously assessed performance metrics, safety systems, and handling characteristics, ultimately declaring the Super Sub ready for operational use.
Advanced Maneuverability and Safety Features
This innovative submersible can ascend and descend at angles of up to 45 degrees, allowing it to navigate complex underwater terrain with superior control and manoeuvrability compared to traditional submarines. With a range of up to ten nautical miles, it combines speed with extended exploration capability, making it ideal for detailed underwater surveys.
The sea trials focused on validating key systems, including propulsion mechanisms, avionics-style controls, and onboard safety features. Notable safety technologies include a sophisticated sonar system that continuously scans the seabed and automatically adjusts the craft's trajectory, along with redundant life-support and control systems to ensure passenger safety.
A 'Flight-Like' Underwater Experience
U-Boat Worx designed the Super Sub to provide a 'flight-like' experience underwater, utilizing hydrodynamic lift to create a smooth forward motion during descent. Additional safety provisions encompass 96 hours of life support, a safety buoy for emergency situations, and Maximum Depth Protection, an automated system that prevents the craft from descending too deep.
Images from the trials showcase the craft moving through open water with a winged profile engineered to enhance stability. Inside, a transparent acrylic pressure hull offers panoramic views, with seating arranged to maximise visibility for both the pilot and passengers, ensuring an immersive underwater journey.
Luxury Integration and Exploration Applications
Founded in 2005, U-Boat Worx intends the Super Sub for integration into luxury yacht programmes or as a standalone exploration platform. Its remarkable speed enables users to survey larger areas within a single dive while maintaining the precision required to inspect delicate reefs, underwater cliffs, and historical wreck sites.
The company is currently finalising preparations for handover to its first owner, with delivery scheduled within the coming weeks. This advancement represents a leap forward in personal underwater exploration, blending cutting-edge technology with luxury and safety for unparalleled aquatic adventures.



