Audi A8 (2017) is 585 mm (23.03 inch) longer, 147 mm (5.79 inch) wider, 10 mm (0.39 inch) higher and has 100 liters (3.53 ft3) bigger cargo space than Buick Excelle GT (2015).
Buick Excelle GT (2015) is 792 kg (1,746 lbs) lighter than Audi A8 (2017).
