Buick Regal (2017) is 311 mm (12.24 inch) longer and 29 mm (1.14 inch) wider than Ford Grand C-Max (2018).
Ford Grand C-Max (2018) is 211 mm (8.31 inch) higher, 182 kg (401 lbs) lighter and has 73 liters (2.58 ft3) bigger cargo space than Buick Regal (2017).