Most Fuel-Efficient 4WD SUVs

© Mercedes-Benz USA© Mercedes-Benz USA
7. 2017 Mercedes-Benz GLE550e
43 MPGe combined / 21 mpg combined
Base MSRP: $66,700
Last year Mercedes-Benz joined the growing list of plug-in SUVs with the new GLE550e 4Matic Plug-in Hybrid. This midsize luxury SUV is powered by a direct-injection 3.0-liter V6 gasoline engine combined with an electric motor, for a total combined output of 436 horsepower and 479 lb-ft of torque delivered through a 7-speed automatic transmission. Electricity gets stored in a lithium-ion battery for an electric-only range up to 12 miles and a top speed of 80 mph in electric mode.

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