Cadillac CTS (2017) is 152 mm (5.98 inch) longer, 389 kg (858 lbs) lighter and has 97 liters (3.43 ft3) bigger cargo space than Mercedes GLC-Class (2016).
Mercedes GLC-Class (2016) is 8 mm (0.31 inch) wider and 206 mm (8.11 inch) higher than Cadillac CTS (2017).