Audi A8 (2019) is 176 mm (6.93 inch) longer and 45 mm (1.77 inch) wider than BMW 5 Series Touring (2017).
BMW 5 Series Touring (2017) is 84 mm (3.31 inch) higher, 377 kg (831 lbs) lighter and has 170 liters (6.00 ft3) bigger cargo space than Audi A8 (2019).