Buick LaCrosse (2015) is 623 mm (24.53 inch) longer, 212 mm (8.35 inch) higher and has 121 liters (4.27 ft3) bigger cargo space than Toyota GR Supra (2018).
Toyota GR Supra (2018) is 3 mm (0.12 inch) wider and 75 kg (165 lbs) lighter than Buick LaCrosse (2015).