Cadillac CTS-V (2014) is 481 mm (18.94 inch) longer, 163 mm (6.42 inch) higher and has 203 liters (7.17 ft3) bigger cargo space than Toyota GR Supra (2018).
Toyota GR Supra (2018) is 18 mm (0.71 inch) wider and 278 kg (613 lbs) lighter than Cadillac CTS-V (2014).