Mercedes GLC-Class (2016) is 34 mm (1.34 inch) wider and 146 mm (5.75 inch) higher than Opel Insignia Country Tourer (2017).
Opel Insignia Country Tourer (2017) is 257 mm (10.12 inch) longer, 500 kg (1,102 lbs) lighter and has 190 liters (6.71 ft3) bigger cargo space than Mercedes GLC-Class (2016).