Negative ghostwriter, gasoline may be the only input, but stored inertia is energy too, and it's a hybrid because it has two kinds of motors that work in tandem to increase efficiency, who said hybrid meant two types of fuel?
So does everything. Everything runs off of entropic decay of the universe.
Almost all the power we use is solar (stored energy from the sun). Nuclear is an exception, in that the energy didn't come from Sol, but some other star that went Nova in the ancient past.
Anyway, a Prius was a "hybrid" in the same sense as previous gas-electric cars and is the same nomenclature used for diesel trains with electric drive.
