The H1 in the center of the Austin Alt Car expo show floor was decked out in a Health Yes! paint job but it was the handmade sign that caught the eye. "Powered by Vegetable Oil and Biodiesel," it read and was yet another one of these hard-to-know-why type of conversions. I mean, if you're trying to win greenie points, why start with a vehicle that, by anybody's calculations, burns tremendous amounts of fuel?
Whatever the reason, the Hummer was part of the booth sponsored by