Toilet motorcycle runs on human poo power

Move your butt over, Prius. Japanese toilet manufacturer Toto has a new take on a green driving machine. The Toilet Bike Neo combines a three-wheel motorcycle with a latrine. The kooky contraption runs on biogas.
Biogas is just a fancy way of saying poo power. In case you were wondering where the source of the stool is supposed to come from, the bike's built-in toilet should answer your question. It doesn't leave much to the imagination. Could we get a privacy screen, please?
According to coverage by Spoon & Tamago, the rolling toilet can play music, write messages in the air using residual light imagery, and talk. There's no word on what exactly the toilet says, but I imagine it has an extensive repertoire of potty humor.
The bike appears to have a giant roll of toilet paper mounted at the rear end. There's even a miniature toilet installed above the headlight like a hood ornament. Classy!