Cadillac XTS (2014) is 840 mm (33.07 inch) longer, 71 mm (2.80 inch) wider, 68 mm (2.68 inch) higher and has 168 liters (5.93 ft3) bigger cargo space than Mercedes A-Class (2014).
Mercedes A-Class (2014) is 417 kg (919 lbs) lighter than Cadillac XTS (2014).