BMW 5 Series Gran Turismo (2019) is 79 mm (3.11 inch) longer, 28 mm (1.10 inch) wider, 28 mm (1.10 inch) higher and has 50 liters (1.77 ft3) bigger cargo space than Mazda 6 (2016).
Mazda 6 (2016) is 289 kg (637 lbs) lighter than BMW 5 Series Gran Turismo (2019).