Bio-Diesel Vespa?

If you didn't click over to P-Town Scooters' projects page because of the last post, perhaps this will entice you. Back in 2005 they did a little testing with a local bio-fuels researcher on coming up with a bio-diesel mix that would work in a Vespa.There's not a lot of info on their page, but from what I can gather, the Vespa wasn't really modified to utilize bio-diesel, and the test was not