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The 2017 Hyundai Ioniq Electric took the top spot in miles per gallon equivalent rating with 136 MPGe in combined fuel economy.
That rating comes from Fuel Economy Guide for model year 2017, which was just released by the U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA). The federal agencies publish and distribute the Guide each year to help new car buyers choose the most fuel-efficient vehicle that meets their need.
The Ioniq Electric beat the all-electric BMW i3 with its 124 MPGe rating and 60 Amp-hour battery. The BMW i3 with a 94 Amp-hour battery came in fourth place at 119 combined MPGe.
The Chevrolet Bolt took third place at 119 combined MPGe. The Bolt will beat Ioniq Electric’s miles per charge range at 238 versus 124 miles for the Ioniq Electric. Both of these new electric cars will be rolling out before the end of the year.
The EPA bases its fuel economy ratings for all-electric vehicles in MPGe where 33.7 kWh equals one gallon of gasoline. Plug-in hybrid Vehicles (PHEV) are ranked by their combined gas/electricity rating.
Fueleconomy.gov also released its annual best and worst fuel economy ratings by EPA vehicle size class. The Hyundai Ioniq took the midsize category, while the BMW i3 battery electric vehicle won the subcompact category. The Chevrolet Volt, with its 77 combined MPGe rating, took the compact category. The Bolt won the EPA’s small station wagon category.
European high-performance luxury sports cars dominated the worst fuel economy ratings score. For two-seaters earning a 12 combined mpg, Aston Martin V12 Vantage S, Ferrari F12 tdf, Lamborghini Aventador Coupe LP740-4, and Lamborghini Aventador Roadster LP740-4, made the list. Two minicompacts also made the gas-guzzling 12 combined mpg ranking: the Ferrari GTC4Lusso and Ferrari GTC4Lusso with a start/stop system.