The claim: Japan has introduced the world’s first biomethane engine, signaling a significant shift from traditional and electric vehicles. Developed by Toyota, Suzuki, and Nissan, this bioengine uses biomethane derived from agricultural waste, positioning it as a cleaner alternative.
I doubt any of this is true. The concept has been around more many decades, but the energy density of methane is too low to make it feasible as an auto fuel.