I would, for sure! I love the decal on the side of the bus too :)
I think it's a great idea to use *ahem* waste matter to power vehicles. We need to explore lots of different options to help the environment and this seems like a pretty good idea. It's not as if the Earth is going to run out of this raw material any time soon..... and unlike using vegetable oil, it doesn't take land out of food production either.