Rolls-Royce Cullinan (2020) is 169 mm (6.65 inch) wider, 191 mm (7.52 inch) higher and has 101 liters (3.57 ft3) bigger cargo space than Rolls-Royce Phantom (2015).
Rolls-Royce Phantom (2015) is 501 mm (19.72 inch) longer and 651 kg (1,435 lbs) lighter than Rolls-Royce Cullinan (2020).