Porsche and Frauscher launch the electric luxury boat 850 Fantom Air
Porsche Engineering, Porsche AG and Austrian boatbuilder Frauscher have joined forces to launch the electric 850 Fantom Air, a luxury day cruiser that transfers Porsche’s road going technology directly onto the water.
At its core sits the drivetrain from the new electric Porsche Macan Turbo. In other words, what once propelled a performance SUV now drives a sleek 8.67 metre boat.
800 volts, now afloat
Porsche Engineering integrated the car’s 800 volt architecture into a marine hull in less than two years. The result is a craft capable of exceeding 85 km/h on the water, powered by a 400 kW electric motor that delivers near silent operation and immediate acceleration.
Unlike a car, however, a boat demands sustained high load from its motor. There is no coasting downhill, no gentle cruising between traffic lights. Engineers had to recalibrate cooling systems and software to cope with continuous strain.
The 100 kWh lithium ion battery required particular attention. To protect it from impact vibrations caused by waves, the pack sits in the lowest central section of the hull on a steel cable suspended frame. This configuration not only shields the battery but also lowers the centre of gravity, improving stability at speed.
Automotive systems without automotive signals
Marine applications lack many of the systems found in modern cars, such as stability control or a traditional parking brake. To ensure smooth communication between components originally designed for automotive use, Porsche Engineering developed a dedicated gateway module. It simulates the signals that would normally come from absent vehicle systems, allowing the drivetrain electronics to function without fault codes.
Engineers also reinforced the transmission interface. Prototype friction clutches gave way to a robust elastomer damped dog clutch capable of handling the motor’s 700 Nm of torque over extended periods.
Inside, the 850 Fantom Air reflects Porsche’s design language. Sport and Sport Plus drive modes transfer directly from road to water. The steering wheel and digital interface echo the brand’s cars, reinforcing the sense that this is a Porsche experience in a different environment.
Limited production, broader ambition
Frauscher has begun building a limited series of 25 boats at its Austrian facility. The project serves as more than a niche luxury offering. According to Porsche Engineering, the modular electric drivetrain concept is scalable and adaptable to other industries, including construction machinery and specialist vehicles.
For Porsche, the 850 Fantom Air is not a marketing gimmick. It is a demonstration that its high performance electric architecture can thrive beyond tarmac. The road to electrification, it seems, now runs across open water as well.
