Alfa Romeo 4C (2016) is 99 mm (3.90 inch) wider and 175 kg (386 lbs) lighter than Mazda 6 Atenza (2018).
Mazda 6 Atenza (2018) is 287 mm (11.30 inch) longer, 358 mm (14.09 inch) higher and has 411 liters (14.51 ft3) bigger cargo space than Alfa Romeo 4C (2016).
