BMW 5 Series Touring (2015) is 602 mm (23.70 inch) longer, 104 mm (4.09 inch) wider and has 39 liters (1.38 ft3) bigger cargo space than Mazda 6 Atenza (2020).
Mazda 6 Atenza (2020) is 10 mm (0.39 inch) higher and 549 kg (1,210 lbs) lighter than BMW 5 Series Touring (2015).