Alfa Romeo 4C (2017) is 11 mm (0.43 inch) wider and 482 kg (1,063 lbs) lighter than Opel Insignia Sports Tourer (2015).
Opel Insignia Sports Tourer (2015) is 925 mm (36.42 inch) longer, 329 mm (12.95 inch) higher and has 450 liters (15.89 ft3) bigger cargo space than Alfa Romeo 4C (2017).
