McLaren 570GT (2017) is 240 mm (9.45 inch) wider and 105 kg (231 lbs) lighter than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 382 mm (15.04 inch) longer, 312 mm (12.28 inch) higher and has 190 liters (6.71 ft3) bigger cargo space than McLaren 570GT (2017).