Fuel economy or electrical energy consumption can be measured in the good ol' American way, in terms of distance traveled per unit of energy consumed (Miles per kilowatt-hour). It's a natural transition from MPG used with ICE vehicles. It's even better than it was, because now we don't have the perennial problem presented by two different "gallons" existing in the USA and in the UK, the 'small gallon' the Yanks have kept using since colonial days and the 10-pound or Imperial Gallon the Brits adopted in 1824. But unfortunately there is another and globally more popular method used by most Europeans, Chinese, South Africans, Australians, Kiwis, and Canucks---one that measures energy consumption in terms of energy consumed per unit of fuel or energy consumed (Liters of fuel burned or kilowatt-hours of energy consumed per 100 kilometers). Comparing the two methods can be difficult for the algebraically challenged. Google "Fuel economy in vehicles" for handy tables. An article in Popular Mechanics claimed that the more popular method is used because it's easier to make comparisons between two vehicles when expressed as energy consumed per unit of distance. It seems that displays in Konas sent to American Hyundai dealers are different from cars going to Canada, which maintains the existence of two methods in N America.