Audi Q8 (2020) is 860 mm (33.86 inch) longer, 177 mm (6.97 inch) wider, 404 mm (15.91 inch) higher and has 529 liters (18.68 ft3) bigger cargo space than Mercedes SLK-Class (2014).
Mercedes SLK-Class (2014) is 815 kg (1,797 lbs) lighter than Audi Q8 (2020).