BMW 3 Series Gran Turismo (2018) is 1565 kg (3,450 lbs) lighter than Rolls-Royce Cullinan (2020).
Rolls-Royce Cullinan (2020) is 517 mm (20.35 inch) longer, 331 mm (13.03 inch) wider, 321 mm (12.64 inch) higher and has 40 liters (1.41 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2018).