Citroen C1 (2014) is 644 kg (1,420 lbs) lighter than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 1447 mm (56.97 inch) longer, 236 mm (9.29 inch) wider, 45 mm (1.77 inch) higher and has 364 liters (12.85 ft3) bigger cargo space than Citroen C1 (2014).