The electric equivalent to a gallon of gas costs me about 2.36 a gallon, and gas at the station down the street is about 2.25 per gallon right now. So gallon per gallon your math works . . .
But my Insight, which I hypermiled daily and was one of the higher mpg Insights on the site got less than half the gas mileage my Volt gets. The math only works if you don't factor in the giant difference between gas mileage in an ICE car and that of the average EV. My Insight was one of the highest mpg gas cars of all times, but I immediately doubled the best gas mileage I ever got in the Insight the first time I drove the Volt
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