These pictures below are from a leaked brochure that has just surfaced online, and are showing the accessories included in the 2011 BMW Series 5 M Sport Package.
As you can see the 2011 BMW Series 5 M Sport Package offers a restyled, more aggressive front spoiler with larger air ducts, new side skirts, plus a new rear bumper that accommodates the two chrome tailpipes.
The 2011 BMW Series 5 M Sport Package also includes 18- and 19-inch alloys while at the interior the manufacturer adds sport seat, and various other inserts. 
The 2011 BMW Series 5 M Sport Package is expected to be launched this autumn and we’ll have to wait for the official details to be revealed and the if any technical enhancements will be applied.

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Source: Autoblog.it