BMW has evidently completed the development of its refreshed 7-Series limousine as the Bavarian company’s CEO Norbert Reithofer revealed that the 2013 model will arrive at dealerships in July during a conference call on Thursday.

The BMW boss did not provide further information on the car, though our spy shots suggest that the styling tweaks on the 2013 7-Series will be limited to the redesigned bumpers, LED headlamps, the front kidney grilles and the alloy wheel designs, along with new trims and better materials inside.

We have also heard that BMW’s engineers will refine the chassis and add two new engines, a V8 gasoline unit and the company’s new tri-turbocharged inline six-cylinder diesel rated at 375hp (381PS) and 740Nm (546 lb-ft), which was first introduced on the M550d xDrive sedan and estate models.

We still don’t know if the tri-turbo diesel will be used on a regular 7-Series, or as the president of BMW’s M division, Friedrich Nitschke, recently hinted, at a new M Performance variant.

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