Mercedes X-Class (2018) is 805 mm (31.69 inch) longer, 104 mm (4.09 inch) wider, 364 mm (14.33 inch) higher and has 573 liters (20.24 ft3) bigger cargo space than Seat Leon ST (2017).
Seat Leon ST (2017) is 308 kg (679 lbs) lighter than Mercedes X-Class (2018).