Hyundai i40 (2015) is 119 mm (4.69 inch) longer, 408 kg (899 lbs) lighter and has 155 liters (5.47 ft3) bigger cargo space than Mercedes GLC-Class (2015).
Mercedes GLC-Class (2015) is 75 mm (2.95 inch) wider and 189 mm (7.44 inch) higher than Hyundai i40 (2015).