Alfa Romeo 4C (2017) is 581 kg (1,281 lbs) lighter than BMW 5 Series Gran Turismo (2018).
BMW 5 Series Gran Turismo (2018) is 955 mm (37.60 inch) longer, 284 mm (11.18 inch) higher and has 420 liters (14.83 ft3) bigger cargo space than Alfa Romeo 4C (2017).