All Yukon and Yukon Denali models are offered in 2WD and 4WD configurations (2WD and AWD with Denali). Yukon XL is also offered in a heavy-duty 2500-series model. A third-row seat is standard on all Yukon models. Yukon models feature a 116-inch wheelbase and overall length of 202 inches, which enables up to 108.9 cubic feet of storage space (with the second-row seat folded and third-row seat removed).