The Mazda CX-9 running cost picture depends most on fuel or charging use, tyres, insurance and the chosen variant price. The available running-cost clue is 2023 2.5T 4WD: 9.2 L/100km; 2023 2.5T 2WD: 8.8 L/100km. Lower energy use helps in daily commuting, while a sensible purchase price keeps insurance and financing easier to manage over the ownership period.