Buick Regal (2017) is 880 kg (1,940 lbs) lighter than GMC Yukon XL (2021).
GMC Yukon XL (2021) is 889 mm (35.00 inch) longer, 200 mm (7.87 inch) wider, 470 mm (18.50 inch) higher and has 2254 liters (79.60 ft3) bigger cargo space than Buick Regal (2017).