OK, if superheroes aren't your idea of "comic", here's something that might be. A VW Beetle that's powered by the same stuff Frau R. keeps telling me I'm full of.
Not that I'm endorsing it as ecologically sustainable, even if it does repurpose a major waste stream. To many unknowns in the technology involved.
Just that it tickles my sense of karma. Or Karmann. Or some such.
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