BMW 8 Series (G14) (2018) is 48 mm (1.89 inch) wider than Mercedes E-Class (Estate) (2017).
Mercedes E-Class (Estate) (2017) is 52 mm (2.05 inch) longer, 157 mm (6.18 inch) higher, 12 kg (26 lbs) lighter and has 320 liters (11.30 ft3) bigger cargo space than BMW 8 Series (G14) (2018).
