The AC-X concept is a plug-in hybrid that's powered by a small four-cylinder engine and a pair of electric motors, Honda says.
The car also has a super-slippery 0.21 coefficient of drag, and it can drive itself to the occupants' desired destination on its own -- or at least that's what Honda says. We'll believe it when we see it.
These models have brought in more money for the manufacturers than any other, according an industry analyst's report.
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