Acura RLX (2018) is 572 mm (22.52 inch) longer, 94 mm (3.70 inch) wider, 26 mm (1.02 inch) higher and has 58 liters (2.05 ft3) bigger cargo space than Mazda 3 (Hatchback) (2017).
Mazda 3 (Hatchback) (2017) is 544 kg (1,199 lbs) lighter than Acura RLX (2018).