Buick Regal (2016) is 69 mm (2.72 inch) higher, 275 kg (606 lbs) lighter and has 2 liters (0.07 ft3) bigger cargo space than Mercedes S-Class Coupe (2015).
Mercedes S-Class Coupe (2015) is 195 mm (7.68 inch) longer and 40 mm (1.57 inch) wider than Buick Regal (2016).
