Mazda 6 Atenza (2014) is 125 mm (4.92 inch) higher and 501 kg (1,105 lbs) lighter than Mercedes CLS-Class (2018).
Mercedes CLS-Class (2018) is 665 mm (26.18 inch) longer, 114 mm (4.49 inch) wider and has 13 liters (0.46 ft3) bigger cargo space than Mazda 6 Atenza (2014).