2012 GMC Terrain: What is the size of the trunk and cargo space?

The 2012 GMC Terrain is a pretty good vehicle when it comes to cargo room. You're going to have a volume of 31.6 cubic feet for Your main cargo area. When You fold down or remove Your 2nd row of seating that area will increase up to 63.9 cubic feet. You'll be able to fit smaller mattresses in the back of this vehicle but it's unlikely that a queen size is going to without sticking out a foot or two. The payload capacity is going to vary between 1000 and 1100 pounds so while You'll have a lot of room You'll need to make sure Your load isn't too heavy.