Approximate comparative fuel economy of various vehicle types
Below is a super-basic study I did this evening of relative fuel economy of a few different transport options. This was very unscientific, in a few cases the numbers were guesstimates, or averages of averages, so is not a conclusive study in any way… Also, it doesn’t take into account the fact that not all gallons are created equal, and that different fuels (avgas vs regular unleaded, for example) must surely have significantly different environmental impact. The numbers come from various sources, some official some not, gathered in an hour or so.