Bentley Flying Spur (2020) is 475 mm (18.70 inch) longer and 148 mm (5.83 inch) wider than BMW 3 Series Gran Turismo (2018).
BMW 3 Series Gran Turismo (2018) is 20 mm (0.79 inch) higher, 682 kg (1,504 lbs) lighter and has 45 liters (1.59 ft3) bigger cargo space than Bentley Flying Spur (2020).