The MG S5 running cost picture depends most on fuel or charging use, tyres, insurance and the chosen variant price. The available running-cost clue is 2026 446km Luxury: 62 kWh; 2025 425km Luxury Long Range: 62 kWh; 2025 430km Comfort Long Range: 62 kWh; 2025 340km Comfort: 49 kWh; 2026 446km Luxury: LFP battery; 3 more variants. Lower energy use helps in daily commuting, while a sensible purchase price keeps insurance and financing easier to manage over the ownership period.