BMW 5 Series Touring (2017) is 101 mm (3.98 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 (2018).
Mazda 6 (2018) is 458 kg (1,010 lbs) lighter than BMW 5 Series Touring (2017).