A New Zealander has built a super-fast, nasty-looking boat powered by his own fat. I wrote about it in December. Earthrace, as it is called, the first trans-ocean biodiesel trimaran raceboat, broke the record for circumnavigating the world, recently. It knocked off nearly 14 days from the record and did it in about 60 days.
The eco-fat (is that a term?) boat is pushing biodiesel as an alternative fuel.
For more stats, check this.