Bentley Flying Spur (2018) is 209 mm (8.23 inch) longer and 74 mm (2.91 inch) wider than BMW 6 Series Gran Turismo (2018).
BMW 6 Series Gran Turismo (2018) is 51 mm (2.01 inch) higher, 622 kg (1,371 lbs) lighter and has 134 liters (4.73 ft3) bigger cargo space than Bentley Flying Spur (2018).