Ferrari's record-breaking V-12-powered race boat is for sale

Mercedes-AMG has its branded Cigarette boats, and Honda builds outboard engines, but no automaker has a watercraft quite like this Ferrari V-12 hydroplane, dubbed Arno XI. Built in the 1950s to chase a speed record, it's now for sale through DuPont Registry. First spotted by Road & Track, the Arno XI was developed in-house by Ferrari in...