Bugatti Chiron (2016) is 182 mm (7.17 inch) wider than Opel Insignia Sports Tourer (2015).
Opel Insignia Sports Tourer (2015) is 369 mm (14.53 inch) longer, 301 mm (11.85 inch) higher, 443 kg (977 lbs) lighter and has 509 liters (17.98 ft3) bigger cargo space than Bugatti Chiron (2016).