Audi S4 (2017) is 375 mm (14.76 inch) longer, 67 mm (2.64 inch) wider and has 125 liters (4.41 ft3) bigger cargo space than Vauxhall Astra (Hatchback) (2020).
Vauxhall Astra (Hatchback) (2020) is 74 mm (2.91 inch) higher and 581 kg (1,281 lbs) lighter than Audi S4 (2017).
