For several decades, GMC products represented little more than rebadged versions of their Chevrolet counterparts. Beginning in 2007, GMC began a concerted effort to distinguish itself from its divisional sibling. With the 2009 GMC Sierra HD trucks, GM's engineers have also made a concerted effort to increase the differentiation between the Heavy Duty pickups and their lighter-duty 1500 counterparts. With improvements in refinement, engines and capabilities, the GMC line of trucks are easily a match, and in some cases superior, to their peers from Dodge and Ford.