(http://media.il.edmunds-media.com/mercedes-benz/sls-amg-gt/ns/mercedes-benz_sls-amg-gt_f34_ns_605122_196.jpg) The 583-horsepower 2013 Mercedes-Benz SLS AMG GT, which replaces the SLS AMG, debuted on Tuesday with the bulk of upgrades focusing on performance, according to Daimler.
InsideLine