Audi S8 (2015) has 46 liters (1.62 ft3) bigger cargo space than Rolls-Royce Phantom (2015).
Rolls-Royce Phantom (2015) is 695 mm (27.36 inch) longer, 41 mm (1.61 inch) wider, 170 mm (6.69 inch) higher and 345 kg (761 lbs) lighter than Audi S8 (2015).