Audi Q8 (2018) is 479 mm (18.86 inch) longer, 171 mm (6.73 inch) wider, 25 mm (0.98 inch) higher and has 389 liters (13.74 ft3) bigger cargo space than Ford Grand C-Max (2015).
Ford Grand C-Max (2015) is 682 kg (1,504 lbs) lighter than Audi Q8 (2018).