Cadillac XTS (2017) is 234 mm (9.21 inch) longer, 46 mm (1.81 inch) higher and has 20 liters (0.71 ft3) bigger cargo space than Opel Insignia Grand Sport (2020).
Opel Insignia Grand Sport (2020) is 10 mm (0.39 inch) wider and 452 kg (996 lbs) lighter than Cadillac XTS (2017).
