Hyundai Elantra GT (2018) is 9 mm (0.35 inch) wider, 27 mm (1.06 inch) higher, 341 kg (752 lbs) lighter and has 108 liters (3.81 ft3) bigger cargo space than Opel Ampera (2014).
Opel Ampera (2014) is 158 mm (6.22 inch) longer than Hyundai Elantra GT (2018).