Hyundai Elantra GT (2019) is 10 mm (0.39 inch) wider and 60 kg (132 lbs) lighter than Mercedes B-Class (2018).
Mercedes B-Class (2018) is 53 mm (2.09 inch) longer, 91 mm (3.58 inch) higher and has 78 liters (2.75 ft3) bigger cargo space than Hyundai Elantra GT (2019).