BMW 5 Series (2020) is 3 mm (0.12 inch) longer, 61 mm (2.40 inch) higher, 91 kg (201 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Mercedes CLS-Class (2017).
Mercedes CLS-Class (2017) is 15 mm (0.59 inch) wider than BMW 5 Series (2020).