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well biodiesel is in it's infancy as are other "solar to something besides electricity, hopefully with much beter energy density" options too, but thinking electricity is "pure" is part of the problem, the sort of religious aspect of electric at times. So comparing an electric motor efficiency to a liquid fueled motor borders on pointless.
But use a liqud (or coal, or biomas I don't care) powered generator to drive an EV and we have a basis for comparison, i.e. how well could that fuel move the vehicle without the generator/converter/controller/motor in the way?
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