amazingly enough, today I attended the earth day event in Pasadena, California where a few presenters were showing the benefits of bio-diesel cars. There were charging around $700 for the conversion.

The option looked good, given the high prices of gas, but I found it a bit inconvenient for people that communite a lot, due to the lack of stations, but that could just be me, the folks that support this stuff may have a zillion reasons to show why it is better to go the bio-diesel way.