BMW 7 Series (2020) is 241 mm (9.49 inch) longer and 69 mm (2.72 inch) higher than Mercedes E-Class (2017).
Mercedes E-Class (2017) is 169 mm (6.65 inch) wider, 192 kg (423 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than BMW 7 Series (2020).