Dodge Viper (2014) is 85 mm (3.35 inch) wider and 44 kg (97 lbs) lighter than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 450 mm (17.72 inch) longer, 266 mm (10.47 inch) higher and has 144 liters (5.09 ft3) bigger cargo space than Dodge Viper (2014).