BMW 5 Series Touring (2017) is 366 mm (14.41 inch) longer, 122 mm (4.80 inch) wider, 119 mm (4.69 inch) higher and has 90 liters (3.18 ft3) bigger cargo space than Mercedes CLA-Class (2015).
Mercedes CLA-Class (2015) is 530 kg (1,168 lbs) lighter than BMW 5 Series Touring (2017).