Acura RDX (2015) is 243 mm (9.57 inch) longer, 137 mm (5.39 inch) wider, 162 mm (6.38 inch) higher and has 317 liters (11.19 ft3) bigger cargo space than Chevrolet Sonic (Sedan) (2014).
Chevrolet Sonic (Sedan) (2014) is 428 kg (944 lbs) lighter than Acura RDX (2015).