Alfa Romeo 4C (2018) is 56 mm (2.20 inch) wider and 626 kg (1,380 lbs) lighter than BMW 3 Series Touring (2018).
BMW 3 Series Touring (2018) is 655 mm (25.79 inch) longer, 243 mm (9.57 inch) higher and has 385 liters (13.60 ft3) bigger cargo space than Alfa Romeo 4C (2018).