Buick LaCrosse (2016) is 623 mm (24.53 inch) longer, 212 mm (8.35 inch) higher and has 192 liters (6.78 ft3) bigger cargo space than Toyota GR Supra (2018).
Toyota GR Supra (2018) is 3 mm (0.12 inch) wider and 138 kg (304 lbs) lighter than Buick LaCrosse (2016).