Buick Regal Sportback (2020) is 485 mm (19.09 inch) longer, 122 mm (4.80 inch) wider and has 85 liters (3.00 ft3) bigger cargo space than Subaru Impreza GP (2014).
Subaru Impreza GP (2014) is 15 mm (0.59 inch) higher and 347 kg (765 lbs) lighter than Buick Regal Sportback (2020).