BMW 5 Series Gran Turismo (2020) 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 275 kg (606 lbs) lighter than BMW 5 Series Gran Turismo (2020).