BMW 8 Series (G14) (2018) is 35 mm (1.38 inch) wider than Buick LaCrosse (2019).
Buick LaCrosse (2019) is 174 mm (6.85 inch) longer, 122 mm (4.80 inch) higher, 340 kg (750 lbs) lighter and has 55 liters (1.94 ft3) bigger cargo space than BMW 8 Series (G14) (2018).