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.

Source: Autoblog.it