BMW 8 Series (G15) (2020) is 48 mm (1.89 inch) wider and 56 kg (123 lbs) lighter than Mercedes E-Class (2014).
Mercedes E-Class (2014) is 36 mm (1.42 inch) longer, 102 mm (4.02 inch) higher and has 120 liters (4.24 ft3) bigger cargo space than BMW 8 Series (G15) (2020).