BMW 8 Series (G14) (2018) is 209 mm (8.23 inch) longer and 68 mm (2.68 inch) wider than Mercedes GLB-Class (2019).
Mercedes GLB-Class (2019) is 320 mm (12.60 inch) higher, 478 kg (1,054 lbs) lighter and has 220 liters (7.77 ft3) bigger cargo space than BMW 8 Series (G14) (2018).