Even figuring in savings given cheap TOU Colorado pricing (about 8 cents/kWh best case), it's hard to make a case for an old design car. We also don't drive that far in a year, so the savings just don't add up. The gen1 Leaf is fine as a super affordable second car, but not worthy of any significant investment beyond acquisition.
When we bought the Leaf last year, I figured we'd save about $700/yr in diesel for the Q5 net net. In practice, with my wife not driving and working very part-time, it's been a fraction of that. Longer term, we're looking at selling all the cars and the camper, buying one mid-sized EV CUV for general around town transportation needs, and renting a vehicle when we want to road trip. That would save us a sizable 4-figure number in insurance alone every year, and removes all the hoorah around trying to road trip in an EV.
We're only holding onto the status quo in the hope that my wife recovers enough to drive again. At this point, that's looking increasingly less likely, unfortunately. We will keep the Q for as long as we have the camper and want to tow. After that, it will be one EV and solar on our next house - too many trees here to make solar work, and we will want something nearer to light-rail anyway.
Empty-nesters - NW Denver-Boulder Area
2019 Leaf SL Plus
2015 Audi Q5 TDI
2007 BMW Z4 3.0Si
2012 VW GTI