With a lineup consisting exclusively of trucks, vans, and SUVs, GMC holds a somewhat unique position in the marketplace, one that it uses to tout its products as "Professional Grade." However, in most respects, GMCs are restyled--and often more luxurious--versions of various Chevrolet truck models. For 2015, both brands updated or redesigned a few of their most recognizable marques. Under the GMC umbrella, these include the redesigned Sierra HD; all-new renditions of the Yukon and Yukon XL full-size SUVs; and the reintroduction of the midsize GMC Canyon pickup truck. The GMC Acadia crossover, Savana van, and 5-passenger Terrain crossover SUV continue to be available, though their updates are relatively minor by comparison.