If you want to get a sizable vehicle that can haul the cargo and passengers you need it to, the Yukon is the largest GMC SUV. Since 1994, the GMC Yukon has been the full-size flagship SUV of the GMC fleet and is easily one of the longest-running vehicles ever made by GM.
On top of the GMC Yukon, GMC also has two other SUVs/crossovers: the compact crossover GMC Terrain and the GMC Acadia, a midsize crossover SUV. However, both of these are substantially smaller than Yukon, as the Yukon can seat up to eight passengers and provides an impressive 122.9 cubic feet of cargo space.