BMW 5 Series (2014) is 582 mm (22.91 inch) longer, 96 mm (3.78 inch) wider, 66 mm (2.60 inch) higher and has 18 liters (0.64 ft3) bigger cargo space than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 405 kg (893 lbs) lighter than BMW 5 Series (2014).