Audi A3 Sportback (2018) is 133 mm (5.24 inch) higher, 150 kg (331 lbs) lighter and has 218 liters (7.70 ft3) bigger cargo space than Porsche Cayman (2017).
Porsche Cayman (2017) is 65 mm (2.56 inch) longer and 15 mm (0.59 inch) wider than Audi A3 Sportback (2018).
