Most Fuel-Efficient Cars of the Past 30 Years

© Hyundai Motor America© Hyundai Motor America
2017–2020 Hyundai Ioniq Hybrid Blue
EPA Rating: 57 mpg city / 59 mpg highway / 58 mpg combined
The new fuel-economy champ of the last 30 years is the Hyundai Ioniq Hybrid Blue, rated at 58 mpg combined. Ioniq Hybrid is powered by a 1.6-liter gasoline direct-injection engine combined with a 32 kW electric motor and a 6-speed EcoShift Dual-Clutch transmission for a total system output of 139 horsepower and 195 lb-ft of torque. (The entry-trim Ioniq Blue is the most fuel-efficient version of the model line.) The Hyundai Ioniq debuted as a 2017 model and for 2020 receives exterior updates including a mesh grille; new front and rear bumpers; LED headlights, taillights and daytime running lights; new wheels and new side sill moldings. Inside, the 2020 Ioniq adds a new center LCD screen, available 10.25-inch touchscreen, a new instrument panel and touchscreen climate control.

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