Mercedes GLB-Class (2019) is 146 mm (5.75 inch) higher, 155 kg (342 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 279 mm (10.98 inch) longer and 22 mm (0.87 inch) wider than Mercedes GLB-Class (2019).