Mercedes GLS-Class (2021) is 422 mm (16.61 inch) longer, 100 mm (3.94 inch) wider and 310 mm (12.20 inch) higher than Opel Insignia Country Tourer (2020).
Opel Insignia Country Tourer (2020) is 845 kg (1,863 lbs) lighter and has 185 liters (6.53 ft3) bigger cargo space than Mercedes GLS-Class (2021).