Acura RLX (2018) is 572 mm (22.52 inch) longer, 94 mm (3.70 inch) wider, 11 mm (0.43 inch) higher and has 58 liters (2.05 ft3) bigger cargo space than Mazda 3 (Hatchback) (2015).
Mazda 3 (Hatchback) (2015) is 500 kg (1,102 lbs) lighter than Acura RLX (2018).