Citroen DS4 (2017) is 6 mm (0.24 inch) wider and 32 mm (1.26 inch) higher than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 142 mm (5.59 inch) longer, 43 kg (95 lbs) lighter and has 62 liters (2.19 ft3) bigger cargo space than Citroen DS4 (2017).