BMW 4 Series (2016) is 975 kg (2,150 lbs) lighter than Rolls-Royce Phantom (2020).
Rolls-Royce Phantom (2020) is 1073 mm (42.24 inch) longer, 147 mm (5.79 inch) wider, 263 mm (10.35 inch) higher and has 93 liters (3.28 ft3) bigger cargo space than BMW 4 Series (2016).