GMC.com and TheCarConnection.com both publish information on GMC pickup trucks. GMC.com provides model overviews plus build and price information for the GMC Canyon, Sierra 1500, Sierra 3500HD and other model types, as of 2015.
GMC model overviews on GMC.com provide information on truck features, performance, technology, trim type and more. The model overview also lists all color options for each truck and downloadable brochures and owner's manuals.
TheCarConnection.com provides information on GMC trucks including vehicle specifications, build and price plus a vehicle review from the site's automotive experts. The expert review rates GMC trucks in a number of categories including performance, features, safety and fuel economy.