Mercedes M-Class (2014) is 436 mm (17.17 inch) longer, 127 mm (5.00 inch) wider, 328 mm (12.91 inch) higher and has 420 liters (14.83 ft3) bigger cargo space than Seat Leon (2020).
Seat Leon (2020) is 535 kg (1,179 lbs) lighter than Mercedes M-Class (2014).