Mercedes GLC-Class (2017) is 13 mm (0.51 inch) wider and 165 mm (6.50 inch) higher than Volvo S80 (2015).
Volvo S80 (2015) is 195 mm (7.68 inch) longer, 377 kg (831 lbs) lighter and has 130 liters (4.59 ft3) bigger cargo space than Mercedes GLC-Class (2017).