It is believed the rumored Mercedes-Benz M-Class plug-in hybrid will be able to return 50 mpg US in the combined cycle.

It is believed the rumored Mercedes-Benz M-Class plug-in hybrid will be able to return 50 mpg US in the combined cycle.

A plug-in hybrid version of the Mercedes-Benz M-Class facelift is all but confirmed and should be out in the second half of next year along with the conventional-powered model. It will have to face some fierce competition coming from the upcoming BMW X5 eDrive production version, as well as the next-gen Audi Q7 and possibly a plug-in hybrid Volvo XC90.

Motivation of the hybridized M-Class will likely be provided by a downsized turbocharged gasoline engine working together with an electric motor installed in a specially developed automatic gearbox. Obviously, there will also be a lithium-ion battery pack granting the vehicle with a very short all-electric range. With both powertrains combined, the M-Class facelift plug-in hybrid will allegedly return 50 mpg US (60 mpg UK or 4.7 liters / 100 km) in the combined cycle.

According to the latest report, Mercedes-Benz will introduce the refreshed M-Class in the fall of 2015. 

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