Audi R8 (2014) is 18 mm (0.71 inch) wider and 1125 kg (2,480 lbs) lighter than Bentley Mulsanne (2018).
Bentley Mulsanne (2018) is 1130 mm (44.49 inch) longer, 276 mm (10.87 inch) higher and has 344 liters (12.15 ft3) bigger cargo space than Audi R8 (2014).