Buick Regal Sportback (2020) is 10 mm (0.39 inch) wider and 82 kg (181 lbs) lighter than Cadillac XTS (2019).
Cadillac XTS (2019) is 203 mm (7.99 inch) longer, 46 mm (1.81 inch) higher and has 39 liters (1.38 ft3) bigger cargo space than Buick Regal Sportback (2020).
