Cadillac CT6 (2016) is 765 mm (30.12 inch) longer, 76 mm (2.99 inch) wider and has 12 liters (0.42 ft3) bigger cargo space than Mercedes GLA-Class (2014).
Mercedes GLA-Class (2014) is 23 mm (0.91 inch) higher and 259 kg (571 lbs) lighter than Cadillac CT6 (2016).