BMW 8 Series (G15) (2019) is 48 mm (1.89 inch) wider and 87 kg (192 lbs) lighter than Mercedes E-Class (Estate) (2020).
Mercedes E-Class (Estate) (2020) is 52 mm (2.05 inch) longer, 155 mm (6.10 inch) higher and has 250 liters (8.83 ft3) bigger cargo space than BMW 8 Series (G15) (2019).