Chevrolet Tahoe (2018) is 266 mm (10.47 inch) longer, 189 mm (7.44 inch) wider, 377 mm (14.84 inch) higher and has 904 liters (31.92 ft3) bigger cargo space than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 941 kg (2,075 lbs) lighter than Chevrolet Tahoe (2018).