BMW 1 Series (2014) is 83 kg (183 lbs) lighter than Buick LaCrosse (2018).
Buick LaCrosse (2018) is 657 mm (25.87 inch) longer, 119 mm (4.69 inch) wider, 50 mm (1.97 inch) higher and has 45 liters (1.59 ft3) bigger cargo space than BMW 1 Series (2014).