Maserati Quattroporte (2019) is 350 mm (13.78 inch) longer and 92 mm (3.62 inch) wider than Opel Insignia Country Tourer (2014).
Opel Insignia Country Tourer (2014) is 32 mm (1.26 inch) higher, 260 kg (573 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Maserati Quattroporte (2019).