Sporting heavy camouflage, the prototypes feature a new grille, modified bumpers and restyled lighting units.

Audi recently unveiled the A5 facelift and now it's time for the A4 to go under the knife.

Sporting heavy camouflage, the prototypes feature a new grille, modified bumpers and restyled lighting units. The overall styling tweaks are minor, but give the model a closer resemblance to the A5 and A6.

Engine options will likely carryover, but the 3.2-liter FSI will likely be replaced by the new supercharged 3.0-liter TFSI V6 with 272 PS (200 kW / 268 hp).

The 2012 Audi A4 could debut later this year, so stay tuned for additional information.

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2012 Audi A4 Avant and sedan facelift spied for first time