My husband and I have a 2017 Chevy Bolt. We love it and it has saved us thousands in gas already, but they are in the midst of a battery recall scenario. The LG lithium-ion battery had a few fires, and so all of us with the cars right now are recommended we only charge up to 80-90%. That's a little bit of a hassle because of the reduced range. Our range at 80% is 180 miles - but that actually means 150, because you don't want to be driving around with less than 30 on the gauge. Not sure when this will be fixed. Our car battery is still under warranty and also this is a recall so it will be dealt with by GM, but I would look into all the details if I were considering buying this car right now as a second owner. Make sure the warranty and recall carries over to you as the most recent buyer.
We do love the car anyways and would not go back to gas for our main commute about vehicle. We live "in the middle of nowhere" and our community has no gas station. The nearest one is 40 miles away, so with your gas-driven car you have to constantly be thinking about your gas level! Or people have to keep gas on hand, which I don't like to do. I'm too sensitive to the fumes, and our current unheated garage can get into the 150F range. We are in the desert SW.
As far as environmental impact goes, there are so many factors to consider that it's very hard to figure out. Add in that besides no gas, our car takes no motor oil. We are the first owners, and have been able to watch for three years now how it affects our electric bill (barely). Because of our remote location and the distant proximity to
gasoline, with the electric car have the advantage of being able to stay in our town indefinitely without needed to just make gasoline trips. This is great because it helps us stick to only totally necessary trips. Of
course, we always try not to make any "gas up only" trips, and consolidate all town trips, but there are times where we have to drive our gas-powered vehicle when we could have instead taken the electric.
The Bolt has also extended the life of our gas powered 2005 SUV dramatically. That SUV is our towing, trash trip, and picking-up-big-things vehicle, and we've managed to reduce it's mileage down to such a small amount it's astonishing. I noticed this because it's been a year since our last oil change for the SUV and we still aren't due for one! So we've gone less than 3000 miles in one year in the SUV, living in the Bootheel of NM, where the nearest Home Depot is over 100 miles away. And we've been doing construction all this time. At 2005, it's an older vehicle, but we may be able to extend our time with it by many years just by having our electric car. So there really are a lot of factors that come into play, including your own lifestyle, that will determine how your electric car impacts the environment.
We are building an off-grid house right now and I'm designing our
solar systems for this car including incorporating the slow charging. We could charge it with the sun on a 120 volt trickle charger (a very slow charge that takes days) or depending on how we design the solar system, with a slightly faster charger that only takes about 8-10 hours of sunlight for a full charge. Most of the time, you don't need a full recharge if you are just driving around the community, so the average charge is probably only a few hours at a time.
I'm designing a solar system for our house and a separate one for our shop. This is in part for redundancy of systems in case one is having problems, and also so that overusing the shop power doesn't wipe out our ability to be comfy in our house. Plus our shop doesn't need a ton of battery backup with how we use it (mostly daytime use, minimal high-powered equipment). If we can charge the car mainly on the shop power and only during the peak daytime hours then we won't be doing the least efficient thing - charging a battery from a battery. Don't want to do that...
There are also systems coming out that allow you to run your house system off your car battery - however, that would shorten the life of your car battery. I guess if you had a small off grid cabin that you only used part time this could be worthwhile. If you have an off grid solar system that you only use a few months a year, for example, it may be cheaper to essentially have a portable, on demand solar system (your car). In that case, why not run it off your car, if the warranty was already up...