Cadillac XT4 (2021) is 182 mm (7.17 inch) longer, 144 mm (5.67 inch) wider, 111 mm (4.37 inch) higher and has 216 liters (7.63 ft3) bigger cargo space than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 265 kg (584 lbs) lighter than Cadillac XT4 (2021).