McLaren 600LT (2019) is 74 mm (2.91 inch) wider and 242 kg (534 lbs) lighter than Opel Insignia Sports Tourer (2015).
Opel Insignia Sports Tourer (2015) is 308 mm (12.13 inch) longer, 317 mm (12.48 inch) higher and has 410 liters (14.48 ft3) bigger cargo space than McLaren 600LT (2019).