Cadillac to offer new twin-turbo V-6 on XTS for 2014 http://t.co/wG15RQHxBB #breakingnews May 17, 2013 James Cadillac to offer new twin-turbo V-6 on XTS for 2014 http://t.co/wG15RQHxBB #breakingnews Post Views: 7