BMW 3 Series Gran Turismo (2021) is 48 mm (1.89 inch) higher, 3 kg (7 lbs) lighter and has 116 liters (4.10 ft3) bigger cargo space than Buick LaCrosse (2018).
Buick LaCrosse (2018) is 191 mm (7.52 inch) longer and 38 mm (1.50 inch) wider than BMW 3 Series Gran Turismo (2021).