Mercedes E-Class (2016) is 81 mm (3.19 inch) wider, 826 kg (1,821 lbs) lighter and has 81 liters (2.86 ft3) bigger cargo space than Rolls-Royce Phantom (2015).
Rolls-Royce Phantom (2015) is 963 mm (37.91 inch) longer and 240 mm (9.45 inch) higher than Mercedes E-Class (2016).