BMW 2 Series (2016) is 157 mm (6.18 inch) longer and 6 mm (0.24 inch) wider than Mazda 6 Atenza (2017).
Mazda 6 Atenza (2017) is 124 mm (4.88 inch) higher, 141 kg (311 lbs) lighter and has 131 liters (4.63 ft3) bigger cargo space than BMW 2 Series (2016).
