Buick LaCrosse (2015) is 122 mm (4.80 inch) longer, 3 mm (0.12 inch) wider, 61 mm (2.40 inch) higher and 176 kg (388 lbs) lighter than Mercedes E-Class (2014).
Mercedes E-Class (2014) has 234 liters (8.26 ft3) bigger cargo space than Buick LaCrosse (2015).