BMW 8 Series (G14) (2019) is 213 mm (8.39 inch) longer and 124 mm (4.88 inch) wider than Mercedes CLA-Class (2016).
Mercedes CLA-Class (2016) is 99 mm (3.90 inch) higher, 438 kg (966 lbs) lighter and has 120 liters (4.24 ft3) bigger cargo space than BMW 8 Series (G14) (2019).