Mazda 6 Atenza (2018) is 735 mm (28.94 inch) longer, 127 mm (5.00 inch) wider, 66 mm (2.60 inch) higher and has 270 liters (9.53 ft3) bigger cargo space than Volkswagen Up (2017).
Volkswagen Up (2017) is 413 kg (911 lbs) lighter than Mazda 6 Atenza (2018).