BMW 5 Series Touring (2015) 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 (2017).
Mazda 6 (2017) is 506 kg (1,116 lbs) lighter than BMW 5 Series Touring (2015).