Cadillac XT4 (2021) is 206 mm (8.11 inch) longer, 162 mm (6.38 inch) wider, 48 mm (1.89 inch) higher and has 151 liters (5.33 ft3) bigger cargo space than Mercedes B-Class (2018).
Mercedes B-Class (2018) is 265 kg (584 lbs) lighter than Cadillac XT4 (2021).