Mercedes A-Class (2014) is 1234 kg (2,721 lbs) lighter than Rolls-Royce Phantom (2016).
Rolls-Royce Phantom (2016) is 1550 mm (61.02 inch) longer, 210 mm (8.27 inch) wider, 205 mm (8.07 inch) higher and has 118 liters (4.17 ft3) bigger cargo space than Mercedes A-Class (2014).