Buick Envision (2016) is 23 mm (0.91 inch) wider, 160 mm (6.30 inch) higher and has 397 liters (14.02 ft3) bigger cargo space than Toyota Mirai (2019).
Toyota Mirai (2019) is 224 mm (8.82 inch) longer and 4 kg (9 lbs) lighter than Buick Envision (2016).