MTU Friedrichshafen
The vessel used by Hawaii Superferry was an aluminum-hulled catamaran with drive-on / drive-off vehicle capability or fast ferry service. It is designed and built in the United States Mobile, AL by Austal USA, a division of the world's largest fast-ferry builder, Australia-based shipbuilder Austal. The vessel is powered by environmentally clean MTU Friedrichshafen engines running on ultra-low sulfur diesel using waterjet propulsion which the company claimed will minimize impact to marine mammals. It was capable of transporting up to 866 passengers and 282 subcompact cars.