Cadillac CT6 (2017) is 271 mm (10.67 inch) longer and 24 mm (0.94 inch) wider than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 40 mm (1.57 inch) higher, 54 kg (119 lbs) lighter and has 127 liters (4.48 ft3) bigger cargo space than Cadillac CT6 (2017).
