McLaren 675LT Coupe (2016) is 11 mm (0.43 inch) wider and 300 kg (661 lbs) lighter than Opel Insignia (2017).
Opel Insignia (2017) is 296 mm (11.65 inch) longer, 310 mm (12.20 inch) higher and has 345 liters (12.18 ft3) bigger cargo space than McLaren 675LT Coupe (2016).