Audi A6 (2014) is 117 mm (4.61 inch) longer, 78 mm (3.07 inch) higher, 81 kg (179 lbs) lighter and has 122 liters (4.31 ft3) bigger cargo space than Ford Mustang Shelby GT350 (2020).
Ford Mustang Shelby GT350 (2020) is 54 mm (2.13 inch) wider than Audi A6 (2014).