Cadillac CTS-V Coupe (2014) is 26 mm (1.02 inch) wider than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 36 mm (1.42 inch) longer, 91 mm (3.58 inch) higher, 330 kg (728 lbs) lighter and has 263 liters (9.29 ft3) bigger cargo space than Cadillac CTS-V Coupe (2014).