I had considered a Prius for my wife and realized that for the 30K or so I was looking so spend I could take a significant smaller chunk of money and go with waste vegetable oil. Over the last 9 months I have converted a 81 Rabbit, 82 240D Mercedes, and a 85 300 Turbo Mercedes to run on waste oil. I was able to do all this for less than half the cost of the Prius. I have since sold the Rabbit cause I could not get parts easily to keep it running and am looking for a dual tank diesel pick up to join the fleet. I am certainly not a snob about it but there are alternatives to high priced vehicles for alternative fuel use. If the article mentioned earlier is true about the Prius being more damaging than a Hummer I am glad I did not get one. If it is not true I am still glad I did not get one cause I don't have crazy debt for a new car. Having said all this people can still choose whatever they want so all I do is educate about alternatives.