Development work continues on the 2014 Mercedes C-Class as our spies have caught another prototype undergoing cold weather testing.

Development work continues on the 2014 Mercedes C-Class as our spies have caught another prototype undergoing cold weather testing.

While the model is heavily camouflaged, photographers believe the car will have CLS-inspired headlights and a new grille which has more of an oval shape. Speculation also suggests the car is a little taller and wider than the current model.

Engine options remain a mystery, but rumors suggest there could be a three-cylinder engine or possibly a four-cylinder engine with cylinder-deactivation technology. We can also expect a hybrid variant with an electric motor that develops approximately 27 PS (20 kW / 27 hp).

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