Audi S8 (2015) has 191 liters (6.75 ft3) bigger cargo space than Rolls-Royce Phantom Coupe (2015).
Rolls-Royce Phantom Coupe (2015) is 465 mm (18.31 inch) longer, 38 mm (1.50 inch) wider, 130 mm (5.12 inch) higher and 404 kg (891 lbs) lighter than Audi S8 (2015).