The North American International Auto Show has opened to the media and will open to the public this weekend. It comes at a time when Detroit and the domestic auto industry founded here are fighting to survive. Organizers claim the show provides a glimpse into the automotive future. They say the show also adds more than half a billion dollars annually to the local economy. Michigan Radio’s Jack Lessenberry spoke with Sean McAlinden – he’s the chief economist for the Center for Automotive Research.