GMC today introduced the all-new 2018 Terrain and unveiled the next chapter of GMC design via a boldly styled and intelligently engineered successor to the brand's popular compact SUV. The Terrain offers greater refinement and versatility to adapt to customers' unique needs, and it's packed with more available advanced safety technologies than ever before. GMC offers customers the widest range of choices yet, with three all-new available turbocharged propulsion systems, including a new turbo-diesel. Two new...