Audi S7 (2018) is 588 mm (23.15 inch) longer, 107 mm (4.21 inch) wider, 127 mm (5.00 inch) higher and has 385 liters (13.60 ft3) bigger cargo space than Porsche 718 Cayman (2017).
Porsche 718 Cayman (2017) is 599 kg (1,321 lbs) lighter than Audi S7 (2018).
