Audi A6 Avant (2018) is 529 mm (20.83 inch) longer, 58 mm (2.28 inch) wider and has 134 liters (4.73 ft3) bigger cargo space than Ford C-Max Energi (2015).
Ford C-Max Energi (2015) is 153 mm (6.02 inch) higher and 141 kg (311 lbs) lighter than Audi A6 Avant (2018).