The Nissan Leaf is very economical to run day to day as it doesn't require petrol or diesel. If charging from a green power source, it can be a genuinely green vehicle that produces zero exhaust emissions. This means that you won't pay any road tax and insurance costs will be low.The cost of charging your second-hand Nissan Leaf car will depend on where and when you're doing it. Regardless, it is likely to be less than what you'd pay for liquid fuel.