You could approximate by saying that a gallon is a kWh of energy. set up the Fuel Price per Gallon to electricity cost $0.1(a), 3(b) MPG, and a much lower maintenance cost...

(a) 10 cents per kWh (depends on where you live), (b) 3 miles per kWh (or 333Wh/mile, depends on the actual EV)