Audi A8 (2015) is 461 mm (18.15 inch) longer, 66 mm (2.60 inch) higher, 234 kg (516 lbs) lighter and has 133 liters (4.70 ft3) bigger cargo space than Bentley Continental (2020).
Bentley Continental (2020) is 4 mm (0.16 inch) wider than Audi A8 (2015).