BMW 8 Series (G15) (2019) is 35 mm (1.38 inch) wider than Buick LaCrosse (2017).
Buick LaCrosse (2017) is 174 mm (6.85 inch) longer, 120 mm (4.72 inch) higher, 78 kg (172 lbs) lighter and has 5 liters (0.18 ft3) bigger cargo space than BMW 8 Series (G15) (2019).