Audi Q8 (2018) is 539 mm (21.22 inch) longer, 203 mm (7.99 inch) wider, 254 mm (10.00 inch) higher and has 500 liters (17.66 ft3) bigger cargo space than Mazda 3 (Hatchback) (2016).
Mazda 3 (Hatchback) (2016) is 871 kg (1,920 lbs) lighter than Audi Q8 (2018).