Maserati Quattroporte (2014) is 421 mm (16.57 inch) longer than Opel Insignia (2017).
Opel Insignia (2017) is 136 mm (5.35 inch) wider, 17 mm (0.67 inch) higher, 202 kg (445 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Maserati Quattroporte (2014).
