Cadillac XT4 (2021) is 221 mm (8.70 inch) longer, 88 mm (3.46 inch) wider, 313 mm (12.32 inch) higher and has 452 liters (15.96 ft3) bigger cargo space than Toyota GR Supra (2020).
Toyota GR Supra (2020) is 31 kg (68 lbs) lighter than Cadillac XT4 (2021).