The first responder truck commissioned by General Motors (GM) has been completed and is ready for its trip to Ground Zero for the upcoming 9-11 anniversary.  The New York City Port Authority has arranged for it to be displayed at Ground Zero for two days, September 6 and 7, 2011.  This truck honors the 441 first responders that lost their lives on that September day.  After it’s viewing at Ground Zero, General Motors  will tour this commemorative truck around the United States for the next…