
American consumers trust J.D. Power for reliable information on vehicles and other products on the domestic market. After conducting detailed analytical studies on auto sales nationwide, this organization recognized the GMC brand for superior performance in key segments. Based on extensive feedback from consumers, this luxury brand claimed the highest sales satisfaction according to the J.D. Power metrics. The U.S. Sales Satisfaction Index (SSI) is primarily drawn from six distinctive categories. For example, the delivery process accounts for 28% of the final SSI score.