BMW 5 Series Gran Turismo (2017) is 140 mm (5.51 inch) longer, 62 mm (2.44 inch) wider, 109 mm (4.29 inch) higher and has 20 liters (0.71 ft3) bigger cargo space than Mazda 6 (2014).
Mazda 6 (2014) is 471 kg (1,038 lbs) lighter than BMW 5 Series Gran Turismo (2017).