Cadillac CTS (2016) is 549 mm (21.61 inch) longer, 30 mm (1.18 inch) wider and has 26 liters (0.92 ft3) bigger cargo space than Mercedes GLA-Class (2014).
Mercedes GLA-Class (2014) is 41 mm (1.61 inch) higher and 316 kg (697 lbs) lighter than Cadillac CTS (2016).