Mercedes GLA-Class (2014) is 48 mm (1.89 inch) longer, 74 mm (2.91 inch) higher, 7 kg (15 lbs) lighter and has 86 liters (3.04 ft3) bigger cargo space than Volvo V40 (2015).
Volvo V40 (2015) is 237 mm (9.33 inch) wider than Mercedes GLA-Class (2014).