McLaren 720S (2020) is 203 mm (7.99 inch) wider and 133 kg (293 lbs) lighter than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 370 mm (14.57 inch) longer, 317 mm (12.48 inch) higher and has 357 liters (12.61 ft3) bigger cargo space than McLaren 720S (2020).