Mercedes GLA-Class (2016) is 205 kg (452 lbs) lighter than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 489 mm (19.25 inch) longer, 52 mm (2.05 inch) wider, 19 mm (0.75 inch) higher and has 139 liters (4.91 ft3) bigger cargo space than Mercedes GLA-Class (2016).