Alfa Romeo 4C (2015) is 527 kg (1,162 lbs) lighter than Mercedes AMG GT (2016).
Mercedes AMG GT (2016) is 558 mm (21.97 inch) longer, 72 mm (2.83 inch) wider, 105 mm (4.13 inch) higher and has 240 liters (8.48 ft3) bigger cargo space than Alfa Romeo 4C (2015).