Photo provided by Opel shows the Opel Monza concept that will be presented during the Frankfurt Auto Show running through Sept. 22, 2013. This concept car _ meaning not necessarily headed for ... more 
Photo provided by Opel shows the Opel Monza concept that will be presented during the Frankfurt Auto Show running through Sept. 22, 2013. This concept car _ meaning not necessarily headed for production _ should provide clues to future designs from GM’s European subsidiary, which is struggling to turn its earnings around. (AP Photo/GM Company) less 
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Associated Press | Photo By GM Company
Mon, Sep 9, 2013 8:07 AM EDT