Mercedes M-Class (2014) is 41 mm (1.61 inch) wider, 318 mm (12.52 inch) higher and has 325 liters (11.48 ft3) bigger cargo space than Toyota Mirai (2021).
Toyota Mirai (2021) is 171 mm (6.73 inch) longer and 302 kg (666 lbs) lighter than Mercedes M-Class (2014).