Cadillac CTS-V Coupe (2015) is 221 mm (8.70 inch) longer and 170 kg (375 lbs) lighter than Mercedes GLC-Class (2020).
Mercedes GLC-Class (2020) is 8 mm (0.31 inch) wider, 237 mm (9.33 inch) higher and has 53 liters (1.87 ft3) bigger cargo space than Cadillac CTS-V Coupe (2015).