Acura RLX (2018) is 993 mm (39.09 inch) longer, 155 mm (6.10 inch) wider and has 38 liters (1.34 ft3) bigger cargo space than Chevrolet Sonic (Hatchback) (2017).
Chevrolet Sonic (Hatchback) (2017) is 40 mm (1.57 inch) higher and 574 kg (1,265 lbs) lighter than Acura RLX (2018).