Audi S6 (2018) is 799 kg (1,761 lbs) lighter than Rolls-Royce Phantom (2014).
Rolls-Royce Phantom (2014) is 1160 mm (45.67 inch) longer, 115 mm (4.53 inch) wider, 201 mm (7.91 inch) higher and has 60 liters (2.12 ft3) bigger cargo space than Audi S6 (2018).