The GMC Terrain is a crossover SUV by American manufacturer General Motors under its sub-brand GMC. The Terrain was built on GM's Theta platform, like the Chevrolet Equinox. It is now built on the Delta platform. It replaced the Pontiac Torrent which was often sold in the same dealerships prior to GM dropping the Pontiac brand. The Terrain is GMC's smallest vehicle slotted below the Acadia.