It looks as though the North American Buick Regal will feature a slightly different look than the China-spec model if this image posted to Buick's official Facebook page is any indication. But that's not the real story.

Lost in last week's GM product news was a spicy morsel from the Detroit News. According to Scott Burgess, GM's "Maximum" Bob Lutz confirmed Buick will reveal the Regal this year as a rebadged Opel Insignia. But whither the GNX?