JOLIET, Ill., May 30, 2013 /PRNewswire-iReach/ -- Although the 2013 Cadillac lineup in Joliet, IL has been one to remember, Cadillac has already confirmed a new engine option for select 2014 models. The new 410-horsepower, twin-turbo V6 engine will find its way to the new Cadillac XTS and...