BMW 5 Series Touring (2018) is 142 mm (5.59 inch) longer, 56 mm (2.20 inch) wider, 115 mm (4.53 inch) higher and has 90 liters (3.18 ft3) bigger cargo space than Mazda 6 (2016).
Mazda 6 (2016) is 431 kg (950 lbs) lighter than BMW 5 Series Touring (2018).