BMW 5 Series (2014) is 894 kg (1,971 lbs) lighter than Rolls-Royce Phantom (2014).
Rolls-Royce Phantom (2014) is 1092 mm (42.99 inch) longer, 89 mm (3.50 inch) wider, 81 mm (3.19 inch) higher and has 20 liters (0.71 ft3) bigger cargo space than BMW 5 Series (2014).