Alfa Romeo Giulia (2018) is 311 kg (686 lbs) lighter than BMW 6 Series Gran Turismo (2020).
BMW 6 Series Gran Turismo (2020) is 447 mm (17.60 inch) longer, 29 mm (1.14 inch) wider, 103 mm (4.06 inch) higher and has 159 liters (5.62 ft3) bigger cargo space than Alfa Romeo Giulia (2018).