Audi A6 (2016) is 620 kg (1,367 lbs) lighter than Rolls-Royce Phantom (2020).
Rolls-Royce Phantom (2020) is 838 mm (32.99 inch) longer, 143 mm (5.63 inch) wider, 191 mm (7.52 inch) higher and has 8 liters (0.28 ft3) bigger cargo space than Audi A6 (2016).