Cadillac ATS Coupe (2019) is 246 mm (9.69 inch) longer and 38 mm (1.50 inch) wider than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 102 mm (4.02 inch) higher, 155 kg (342 lbs) lighter and has 127 liters (4.48 ft3) bigger cargo space than Cadillac ATS Coupe (2019).