Buick Regal Sportback (2020) is 58 mm (2.28 inch) longer than Opel Insignia (2017).
Opel Insignia (2017) is 222 mm (8.74 inch) wider, 43 mm (1.69 inch) higher, 84 kg (185 lbs) lighter and has 70 liters (2.47 ft3) bigger cargo space than Buick Regal Sportback (2020).
