The GMC Yukon XL cargo space is, as the name suggests, an extra-large cavern that’ll fit all the loads you need for your lifestyle in Jacksonville, FL. Specifically, a new GMC Yukon XL has 41.5 cubic feet of cargo space behind its third row of seats and 93.8 cubic feet of room behind the second row. And behind its first row of seats, the Yukon XL can offer an all-encompassing 144.7 cubic feet of cargo space.