While the mule is still camouflaged, the mule has a new grille, redesigned bumpers, and revised lighting units.

Our spies have once again caught a facelifted Mercedes R-Class undergoing testing in Europe.

While the prototype is still camouflaged, we can clearly see a new grille, redesigned bumpers, and revised lighting units.

Inside, changes will likely include a redesigned dash, an updated COMAND system, and plethora of new technology (such as Blind Spot Assist, Lane Keeping Assist and Night View Assist).

Under the hood, engine options will likely carryover with minor modifications for improved fuel efficiency and added performance. Despite this, Mercedes may offer a hybrid R-Class for the first time. If there is enough demand, Mercedes could easily install the hybridized 3.5-liter V6, from the ML 450 Hybrid, into the R-Class because they are both built at the same plant.

Look for a possible unveiling at the New York Auto Show or the Paris Motor Show.

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Mercedes R-Class Facelift Latest Spy Photos