Buick Regal (2017) is 421 mm (16.57 inch) longer and 23 mm (0.91 inch) wider than Mercedes GLA-Class (2017).
Mercedes GLA-Class (2017) is 138 mm (5.43 inch) higher, 112 kg (247 lbs) lighter and has 33 liters (1.17 ft3) bigger cargo space than Buick Regal (2017).
