Audi A6 (2019) is 479 mm (18.86 inch) longer, 90 mm (3.54 inch) wider, 17 mm (0.67 inch) higher and has 166 liters (5.86 ft3) bigger cargo space than Mazda 3 (Hatchback) (2017).
Mazda 3 (Hatchback) (2017) is 482 kg (1,063 lbs) lighter than Audi A6 (2019).