BMW 4 Series (2015) is 1715 kg (3,781 lbs) lighter than Rolls-Royce Cullinan (2020).
Rolls-Royce Cullinan (2020) is 643 mm (25.31 inch) longer, 289 mm (11.38 inch) wider, 446 mm (17.56 inch) higher and has 115 liters (4.06 ft3) bigger cargo space than BMW 4 Series (2015).