Does this help:
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsz27267
CAR Reports are being mailed to users other than CAR Administrators.
This will occur when 'mailing option' is checked on CAR Admin page.
This is expected. Individuals/end users get the individual bill summary reports, managers get the individual and department bill summary reports, top n reports, and qos summary report, and CAR Admins get all Pregenerated reports that are enabled.