Hyundai Elantra (2015) is 156 mm (6.14 inch) longer and 230 kg (507 lbs) lighter than Mazda 6 Atenza (2020).
Mazda 6 Atenza (2020) is 21 mm (0.83 inch) wider, 122 mm (4.80 inch) higher and has 36 liters (1.27 ft3) bigger cargo space than Hyundai Elantra (2015).
