Yachting

The "One-Second Wow": Inside the Brabus and Sunreef Ultima 55 Powercat Collaboration

When the German high-performance engineering powerhouse Brabus sets its sights on a new category, mediocrity is never an option. Known globally for transforming high-end automobiles and motorcycles into snarling, carbon-clad hyper-machines, the brand has officially brought its unmistakable design ethos to the high seas.

Brabus calls it the "one-second wow." The concept is simple yet uncompromising: the very first second you lay eyes on a Brabus creation, you should be instantly captivated, struck by an unmistakable awareness that you are in the presence of something extraordinary.

That philosophy now defines the Brabus Ultima 55, a striking luxury power catamaran born from a landmark collaboration between Brabus and renowned luxury yacht builder Sunreef Yachts. Marrying Brabus’s aggressive automotive styling with Sunreef’s industry-leading multihull architecture, the Ultima 55 represents a bold leap forward in performance cruising. Featuring an advanced carbon-fiber exterior, hydrofoil technology designed to slice through drag, a bespoke leather-appointed interior, and a top speed exceeding 40 knots, the Ultima 55 is poised to redefine what owners expect from a luxury day-cruiser and weekender.


Main Facts

The Brabus Ultima 55 is a high-performance luxury power catamaran that serves as the maiden voyage for the partnership between Brabus and Sunreef Yachts. Designed to merge the adrenaline-fueled aesthetics of land-based supercars with the sophisticated comfort of a high-end yacht, the vessel stands out through several core specifications:

  • Design & Materials: Crafted with an extensive carbon-fiber exterior featuring exposed carbon wings (front and rear), pillars with illuminated Brabus logos, and specialized port and starboard ventilation trims.
  • Performance: Propelled by twin diesel Volvo Penta D11-IPS950 engines, each outputting 725 horsepower, allowing the powercat to effortlessly achieve a reported top speed in excess of 40 knots.
  • Hydrofoil Technology: Equipped with an integrated hydrofoil system that generates hydrodynamic lift beneath the surface, raising the hulls to drastically minimize drag and eliminate heel during sharp turns.
  • Layout Options: Offered in two distinct configurations—a standard layout featuring a master stateroom, a VIP cabin, and one crew cabin, or an alternative layout housing three guest staterooms and a crew cabin.
  • Aft Deck Expansion: Sunreef’s signature engineering expands the aft deck beam from approximately 18 feet to nearly 25 feet via foldout balconies, creating an expansive social space complete with an electric grill, wet bar, and extendable carbon-fiber dining table.

Chronology of a High-Performance Partnership

The journey toward the Ultima 55 was not born overnight. It is the result of years of brand expansion by Brabus into the marine sector, coupled with Sunreef Yachts’ ongoing mission to push the boundaries of multihull design and sustainability.

For decades, Brabus built its legendary reputation in Bottrop, Germany, modifying Mercedes-Benz vehicles into ultra-exclusive performance icons. However, in recent years, the company expanded its footprint into "Brabus Marine," developing high-performance day boats that captured the brand’s signature aggressive styling and uncompromising power.

Sunreef Yachts, meanwhile, established itself as a global leader in the design and construction of custom luxury catamarans and powercats, known for pioneering large-surface indoor-outdoor living spaces and eco-conscious yachting innovations.

The convergence of these two design powerhouses began behind closed doors as engineering teams from Germany and Poland sought to answer a single question: What happens when supercar DNA is injected directly into a high-performance multihull platform?

The result was the development of the Ultima 55. By combining Brabus’s signature dark-palette color schemes—Graphite Black and Phantom Gray—with Sunreef’s advanced naval architecture, the collaboration moved swiftly from initial digital renderings to physical engineering. The integration of structural carbon fiber required specialized manufacturing techniques adapted from the automotive world, while the hydrofoil system underwent rigorous tank testing to ensure that the catamaran’s blistering speed would be matched by absolute stability on the water. The official unveiling of the Ultima 55 marks a watershed moment for both brands, signaling a new sub-genre of luxury watercraft that blurs the line between bespoke automotive art and ocean-going engineering.


Supporting Data & Engineering Breakdown

To truly understand the Brabus Ultima 55, one must look beneath the sleek, aggressive exterior and examine the engineering metrics that allow such a substantial vessel to handle like a sports car.

Propulsion and Hydrodynamics

At the heart of the Ultima 55’s performance package are twin Volvo Penta D11-IPS950 diesel engines. Pumping out a combined 1,450 horsepower (725 hp per engine), this propulsion setup utilizes Forward-Facing Pod Drives to maximize efficiency, maneuverability, and thrust vectoring.

Brabus and Sunreef Build a Powercat That Stops Traffic

Crucially, raw horsepower alone cannot push a 55-foot catamaran past 40 knots without sacrificing ride quality. This is where the Ultima 55’s advanced hydrofoil system comes into play. As the vessel accelerates, the hydrofoil generates strategic lift beneath the water’s surface. This hydrodynamic lift physically raises the twin hulls higher out of the water, significantly reducing wetted surface area and hull drag. The result is not only a higher top-end speed and improved fuel efficiency, but also the virtual elimination of hull heel—allowing passengers to experience flat, razor-sharp cornering even at high velocities.

Exterior Styling and Customization

The aesthetic package of the Ultima 55 reads like a wishlist for supercar enthusiasts. Available in two primary stealth finishes—Graphite Black and Phantom Gray—the yacht features exposed carbon-fiber elements that catch the eye from hundreds of yards away.

  • Lighting: Exposed carbon-fiber LED roof lights serve a dual purpose, functioning as both functional task lighting and mood-setting ambient illumination.
  • Pillars & Trims: Structural pillars proudly display illuminated Brabus logos, while custom ventilation trims on the port and starboard flanks echo the cooling ducts of a high-end road machine.
  • Upholstery: Buyers can personalize their deck experience using custom exterior marine upholstery available in three distinct Brabus motifs: Graphite, Red, or Pearl.

Deck Geometry and Outdoor Living

Sunreef’s influence shines brightest on the main deck, where the emphasis is firmly placed on seamless indoor-outdoor living.

  • The Aft Balconies: Foldout platforms on the aft deck expand the usable beam from a standard 18 feet to a sprawling 25 feet.
  • Materials: The deck is surfaced with Esthec—a composite, low-maintenance alternative to traditional teak that offers superior durability against UV rays, saltwater, and heavy foot traffic.
  • Entertainment Hub: The aft section features sunpads that effortlessly convert into comfortable settees for evening cocktails, accompanied by an extendable carbon-fiber dining table, an integrated electric grill, and a fully equipped wet bar.
  • Bow Privacy: For moments of solitude, a separate private sunpad area is positioned at the bow, completely isolated from the bustling social atmosphere of the stern.

Official Responses and Industry Perspective

Executives from both companies have emphasized that the Ultima 55 is much more than a cosmetic crossover; it is a statement of intent for the future of luxury day-boating.

In official statements regarding the collaboration, representatives from Brabus highlighted that the project was designed to translate the brand’s uncompromising approach to land-based luxury into a marine environment that demands both absolute performance and uncompromising comfort. "The goal was never just to build a fast boat," a Brabus design representative noted during the initial rollout. "The goal was to evoke the ‘one-second wow’—to create an emotional reaction that hits you instantly, whether you see it parked at a marina or screaming across open water at 40 knots."

Sunreef Yachts echoed this sentiment, emphasizing the engineering synergy required to merge their world-class multihull platforms with Brabus’s aggressive design language. Sunreef engineers noted that adapting the structural integrity of a carbon-fiber superstructure to handle the immense torque of the Volvo Penta IPS system—while maintaining the luxurious, customizable interior layouts demanded by high-net-worth clients—pushed both teams to innovate beyond conventional industry standards.


Implications for the Luxury Yacht Market

The debut of the Brabus Ultima 55 carries significant implications for the upper echelon of the marine leisure industry. For years, the market for high-performance day boats and powercats has been divided into two distinct categories: ultra-fast, utilitarian chase boats that sacrifice interior comfort for speed, and luxurious, voluminous cruising catamrans that prioritize space at the expense of adrenaline-fueled performance.

The Ultima 55 successfully bridges this gap, proving that owners no longer have to choose between a high-speed thrill ride and a refined, multi-cabin luxury yacht. By utilizing advanced carbon-fiber construction and hydrofoil lift systems, the collaboration demonstrates how modern naval architecture can achieve supercar-level performance without compromising on stability, fuel efficiency, or guest accommodations.

Furthermore, this high-profile partnership points to a growing trend of cross-industry collaborations in the luxury sector. As ultra-high-net-worth individuals increasingly seek bespoke lifestyle ecosystems—where their supercars, watches, homes, and yachts share a unified design language—alliances between automotive titans and elite shipyards are likely to become the new benchmark of luxury manufacturing.

Whether viewed docked in the crystal-clear waters of the Mediterranean or spotted tearing across the horizon at over 40 knots, the Brabus Ultima 55 stands as a testament to what happens when two masters of their respective crafts refuse to compromise. Both literally and figuratively, it promises a seriously smooth ride—and a permanent fixture in the hearts of performance enthusiasts worldwide.