Hyundai i40 (2020) is 209 mm (8.23 inch) longer, 488 kg (1,076 lbs) lighter and has 75 liters (2.65 ft3) bigger cargo space than Mercedes GLK-Class (2018).
Mercedes GLK-Class (2018) is 25 mm (0.98 inch) wider and 229 mm (9.02 inch) higher than Hyundai i40 (2020).