Mercedes GLC-Class (2014) is 59 mm (2.32 inch) wider and 224 mm (8.82 inch) higher than Volvo S80 (2017).
Volvo S80 (2017) is 335 mm (13.19 inch) longer, 413 kg (911 lbs) lighter and has 130 liters (4.59 ft3) bigger cargo space than Mercedes GLC-Class (2014).