This is a nice video done by Yachting World on a Gunboat 66 test.
http://www.gunboat.com/yw_boattest.php
It is a bit promotional but still nice to watch for
catamaran enthusiasts.
Here is another video called TEA at 20 Knots. Fun!
http://www.gunboat.com/tea_vid.php
What they dont mention is the Chris White Atlantic 55-57 can perform just as well for millions less, but it is not nearly as beautiful as the gunboat.
Enjoy