Mercedes GLA-Class (2018) is 98 mm (3.86 inch) higher and 37 kg (82 lbs) lighter than Opel Insignia Sports Tourer (2015).
Opel Insignia Sports Tourer (2015) is 503 mm (19.80 inch) longer, 22 mm (0.87 inch) wider and has 125 liters (4.41 ft3) bigger cargo space than Mercedes GLA-Class (2018).