BMW 4 Series Gran Coupe (2017) is 244 mm (9.61 inch) longer and 30 mm (1.18 inch) wider than Mazda 6 Atenza (2020).
Mazda 6 Atenza (2020) is 178 mm (7.01 inch) higher, 346 kg (763 lbs) lighter and has 40 liters (1.41 ft3) bigger cargo space than BMW 4 Series Gran Coupe (2017).
