Here's a 20-footer that goes 20 knots. Not only that, it's fairly easy to sail, too.
In the late 80's, the Ultimate 20's landscape was littered with the remains of boatbuilding companies that couldn't cut to fit. The conventional wisdom was that starting a new company was guaranteed to convert a large fortune to a small one. In this period, Jeff Canepa conceived the idea of entering the fracas with a pint-sized company based in Santa Cruz, California, that would introduce yet another performance 21-footer.