Audi A6 Allroad (2015) is 61 mm (2.40 inch) longer, 63 mm (2.48 inch) higher and has 25 liters (0.88 ft3) bigger cargo space than Mercedes E-Class (2015).
Mercedes E-Class (2015) is 173 mm (6.81 inch) wider and 122 kg (269 lbs) lighter than Audi A6 Allroad (2015).