Hyundai Elantra (2015) is 15 mm (0.59 inch) wider than Nissan Sylphy (2017).
Nissan Sylphy (2017) is 65 mm (2.56 inch) longer, 58 mm (2.28 inch) higher, 6 kg (13 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than Hyundai Elantra (2015).
