Audi S8 (2015) is 306 kg (675 lbs) lighter than Rolls-Royce Cullinan (2020).
Rolls-Royce Cullinan (2020) is 194 mm (7.64 inch) longer, 210 mm (8.27 inch) wider, 361 mm (14.21 inch) higher and has 55 liters (1.94 ft3) bigger cargo space than Audi S8 (2015).