BMW 4 Series (2013) is 975 kg (2,150 lbs) lighter than Rolls-Royce Phantom (2020).
Rolls-Royce Phantom (2020) is 1133 mm (44.61 inch) longer, 192 mm (7.56 inch) wider, 284 mm (11.18 inch) higher and has 93 liters (3.28 ft3) bigger cargo space than BMW 4 Series (2013).