Alfa Romeo 4C (2015) is 27 mm (1.06 inch) wider and 762 kg (1,680 lbs) lighter than Mercedes GLK-Class (2016).
Mercedes GLK-Class (2016) is 548 mm (21.57 inch) longer, 515 mm (20.28 inch) higher and has 340 liters (12.01 ft3) bigger cargo space than Alfa Romeo 4C (2015).