Bentley Flying Spur (2017) is 628 mm (24.72 inch) longer and 95 mm (3.74 inch) wider than BMW X4 (2017).
BMW X4 (2017) is 136 mm (5.35 inch) higher, 607 kg (1,338 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than Bentley Flying Spur (2017).