The 2015 Audi A6 and A6 Avant have been spied undergoing testing in Europe. See the photos inside

The 2015 Audi A6 and A6 Avant have been spied undergoing testing in Europe.

Looking instantly recognizable, the facelifted models are distinguished by modified bumpers and new Matrix LED headlights. The cars also have restyled taillights and trapezoidal exhaust tips that are better integrated into the rear bumper.

Our spies couldn't get to close enough to snap interior photos but the model is expected to feature an updated infotainment system and various other tweaks.

Engine options will likely carryover but there could be some minor modifications for improved performance and reduced fuel consumption. Speaking of which, the model could be equipped with a new 3.0-liter V6 TDI that produces 258 PS (190 kW).

The 2015 Audi A6 and A6 Avant could be introduced later this year, so look for a possible debut at the Paris Motor Show.

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2015 Audi A6 & A6 Avant spied with new Matrix LED headlights