BMW X7 (2019) is 251 mm (9.88 inch) longer, 138 mm (5.43 inch) wider, 350 mm (13.78 inch) higher and has 280 liters (9.89 ft3) bigger cargo space than Buick Regal Sportback (2019).
Buick Regal Sportback (2019) is 755 kg (1,664 lbs) lighter than BMW X7 (2019).