The Nissan Serena running cost picture depends most on fuel or charging use, tyres, insurance and the chosen variant price. The available running-cost clue is 2026 HEV 1.5L Shiro Premium Highway Star: 5.4 L/100km; 2026 HEV 1.5L Premium Highway Star: 5.4 L/100km; 2026 HEV 1.5L Highway Star: 5.4 L/100km; 2026 HEV 1.5L X Plus: 5.4 L/100km; 2026 HEV 1.5L X: 5.4 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.