Alfa Romeo Giulia (2018) is 21 mm (0.83 inch) wider and 333 kg (734 lbs) lighter than Cadillac XTS (2015).
Cadillac XTS (2015) is 489 mm (19.25 inch) longer, 65 mm (2.56 inch) higher and has 59 liters (2.08 ft3) bigger cargo space than Alfa Romeo Giulia (2018).