 Driving.ca | 2010 GMC Terrain to Debut in New York Automobile Magazine Although Pontiac is due to lose the Torrent as it becomes a "niche brand," GMC will gain a small crossover in the form of the 2010 Terrain. It will become the smallest member of GMC family and is based on the Theta platform which underpins the ... Join Us! 2010 GMC Terrain Live Webchat this Wednesday gmc's new Terrain takes on small suvs GM to unveil smaller, more efficient GMC Terrain |