Opel Insignia Grand Sport (2017) is 1199 mm (47.20 inch) longer, 143 mm (5.63 inch) wider and has 320 liters (11.30 ft3) bigger cargo space than Vauxhall Adam (2015).
Vauxhall Adam (2015) is 29 mm (1.14 inch) higher and 284 kg (626 lbs) lighter than Opel Insignia Grand Sport (2017).
