BMW 5 Series Gran Turismo (2015) is 33 mm (1.30 inch) wider, 98 mm (3.86 inch) higher and has 75 liters (2.65 ft3) bigger cargo space than Buick LaCrosse (2017).
Buick LaCrosse (2017) is 11 mm (0.43 inch) longer and 384 kg (847 lbs) lighter than BMW 5 Series Gran Turismo (2015).