BMW 4 Series Gran Coupe (2017) is 941 kg (2,075 lbs) lighter than Rolls-Royce Cullinan (2019).
Rolls-Royce Cullinan (2019) is 703 mm (27.68 inch) longer, 174 mm (6.85 inch) wider, 440 mm (17.32 inch) higher and has 79 liters (2.79 ft3) bigger cargo space than BMW 4 Series Gran Coupe (2017).