Acura RLX (2014) is 682 mm (26.85 inch) longer, 109 mm (4.29 inch) wider and has 14 liters (0.49 ft3) bigger cargo space than Hyundai Elantra GT (2017).
Hyundai Elantra GT (2017) is 6 mm (0.24 inch) higher and 465 kg (1,025 lbs) lighter than Acura RLX (2014).