Mercedes GLB-Class (2020) is 146 mm (5.75 inch) higher and has 10 liters (0.35 ft3) bigger cargo space than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 275 mm (10.83 inch) longer, 22 mm (0.87 inch) wider and 918 kg (2,024 lbs) lighter than Mercedes GLB-Class (2020).