Alfa Romeo 4C (2017) is 93 mm (3.66 inch) wider and 551 kg (1,215 lbs) lighter than BMW 2 Series (2018).
BMW 2 Series (2018) is 444 mm (17.48 inch) longer, 234 mm (9.21 inch) higher and has 280 liters (9.89 ft3) bigger cargo space than Alfa Romeo 4C (2017).