Guilliman: I just ran through some numbers I have to see how much of a difference there has been in running costs, focusing on petrol/electricity only. My previous car was a 2008 Toyota Blade 2.4L. From what I could see it appears to me that the highest fuel economy is 13.4km/L. I've been able to nudge the Leaf up to 8.1km/kWH for my average weekly commutes. Odo was 19000km when I bought it which I will assume is legit, as of my log today in the morning before takeoff it was 51426km. So I worked out I've added 32426km. At the extant efficiency that seems to be around 4003.21kWH used to date to charge. If I use our current home rate of 26.76c/kWH that seems to be a spend of $1071.26 to date. If I instead go with my current EV off-peak rate through Mercury of 5.352c/kWH that would be $214.25. I don't remember that I requested the EV package from Mercury straight away so the value would be somewhere in between. This also doesn't account for the four long trips I've taken with multiple ChargeNet top ups. Using the 13.4km/L I worked out I would have used 2419.85L over the same period and overall distance travelled. If I go with the AA average petrol price in Jan 19 of $2.149/L that appears to work out at $5200.26. There's probably some things I've missed and certainly fluctuating petrol prices could affect things [plus I tended to use 98 in my Blade] but I thought I could get at least some kind of idea of the difference. Clearly any gains went towards paying off the car [worked out my own financing with a relative] but it's still good to have them.
Also, you have avoided the money & environmental costs of changing your engine oil & filter at least once a year, and because of regenerative braking, extended the life of your disk pads by a significant amount relative to an ICE vehicle.
It all adds up