Cadillac XTS (2014) is 235 mm (9.25 inch) longer, 46 mm (1.81 inch) higher and has 19 liters (0.67 ft3) bigger cargo space than Opel Insignia Grand Sport (2017).
Opel Insignia Grand Sport (2017) is 12 mm (0.47 inch) wider and 447 kg (985 lbs) lighter than Cadillac XTS (2014).
