Mercedes GLA-Class (2015) is 199 mm (7.83 inch) higher, 150 kg (331 lbs) lighter and has 276 liters (9.75 ft3) bigger cargo space than Porsche 911 (2015).
Porsche 911 (2015) is 74 mm (2.91 inch) longer and 4 mm (0.16 inch) wider than Mercedes GLA-Class (2015).