Mercedes X-Class (2018) is 698 mm (27.48 inch) longer, 121 mm (4.76 inch) wider, 363 mm (14.29 inch) higher and has 690 liters (24.37 ft3) bigger cargo space than Seat Leon ST (2020).
Seat Leon ST (2020) is 499 kg (1,100 lbs) lighter than Mercedes X-Class (2018).