McLaren 650S Coupe (2015) is 237 mm (9.33 inch) wider and 132 kg (291 lbs) lighter than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 401 mm (15.79 inch) longer, 310 mm (12.20 inch) higher and has 416 liters (14.69 ft3) bigger cargo space than McLaren 650S Coupe (2015).