BMW 5 Series Touring (2017) is 132 mm (5.20 inch) longer, 61 mm (2.40 inch) wider, 107 mm (4.21 inch) higher and has 80 liters (2.83 ft3) bigger cargo space than Mazda 6 (2016).
Mazda 6 (2016) is 545 kg (1,202 lbs) lighter than BMW 5 Series Touring (2017).