Mercedes GLA-Class (2015) is 77 mm (3.03 inch) higher and 419 kg (924 lbs) lighter than Porsche Panamera (2016).
Porsche Panamera (2016) is 597 mm (23.50 inch) longer, 126 mm (4.96 inch) wider and has 24 liters (0.85 ft3) bigger cargo space than Mercedes GLA-Class (2015).