Bentley Mulsanne (2015) is 569 mm (22.40 inch) longer and 31 mm (1.22 inch) wider than BMW 5 Series Touring (2018).
BMW 5 Series Touring (2018) is 44 mm (1.73 inch) higher, 859 kg (1,894 lbs) lighter and has 127 liters (4.48 ft3) bigger cargo space than Bentley Mulsanne (2015).