Audi A6 Allroad (2016) is 284 mm (11.18 inch) longer, 8 mm (0.31 inch) wider, 135 kg (298 lbs) lighter and has 215 liters (7.59 ft3) bigger cargo space than Mercedes GLC-Class (2014).
Mercedes GLC-Class (2014) is 209 mm (8.23 inch) higher than Audi A6 Allroad (2016).