Electric Honda Fit deemed most fuel efficient car at 118 mpg equivalent Honda says its 2013 Fit EV has received the highest fuel efficiency rating ever from the Environmental Protection Agency. The Japanese automaker says the subcompact electric car received a combined adjusted mile-per-gallon-equivalency rating of 118 mpg. The Fit consumes 29 kilowatt hours of electricity per 100 miles and has an EPA rated annual fuel cost of $500. Honda says the EPA estimates its combined city and highway driving range rating at 82 miles on a single charge. In comparison, Honda says the electric Ford Focus has a combined adjusted mile-per-gallon-equivalency rating of 105 mpg and a 76-mile range, while the Nissan Leaf has a combined rating of 99 mpg and a 73-mile range.