Beating the Bugatti Veyron hands down for exclusivity, the supercar has 880bhp from its twin-turbo V12 engine and a claimed top speed of 234mph. Only six will be built, each capable of hitting 60mph from rest in 3.2 seconds.
Designer, Sweden-based 33-year-old Eduard Gray, told CNN that he took inspiration from the lines and curves of sports car, the Ferrari Testa Rossa.
"We have really tried to achieve a strong harmony in our design -- so that the car looks like it was literally born inside the hull of the yacht," he said.
But ultimately, he said, he wanted to design "something you want to be seen in -- the sexiest damn boat in the harbor!"