McLaren MP4-12C (2019) is 52 mm (2.05 inch) wider and 299 kg (659 lbs) lighter than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 404 mm (15.91 inch) longer, 314 mm (12.36 inch) higher and has 416 liters (14.69 ft3) bigger cargo space than McLaren MP4-12C (2019).