Alfa Romeo Giulia (2019) is 396 mm (15.59 inch) longer, 63 mm (2.48 inch) wider and has 70 liters (2.47 ft3) bigger cargo space than Seat Leon SC (2016).
Seat Leon SC (2016) is 10 mm (0.39 inch) higher and 271 kg (597 lbs) lighter than Alfa Romeo Giulia (2019).