First of all, DC charging is three-phase, which very few homes are wired for. That’s a $20k installation and not feasible for most homeowners; our city just installed one and that was price mentioned...don’t know how representative that may be but the device is expensive for certain.
All of the other posts provide some good advice, and you make your choice. It appears that just a normal 120v 20-amp circuit would suffice for your needs, but the 240v options are much faster and desirable for that reason with the appropriate EVSE (electric vehicle service equipment, i.e., charging station).
You also mention future-proofing. There are two things you can reasonably expect: getting another EV and needing to charge both, and higher charging speeds in newer vehicles. I have two EVs now and use my one 32-amp AeroVironment EVSE purchased when I got my LEAF back in 2012 to charge both vehicles. My Long Range Model 3, for example, can take a 240v charge at 48 amps, requiring a 60-amp circuit with appropriate breaker, wire sizing, and EVSE. And that’s as of 2018. I would expect vehicle chargers, battery chemistries, and battery management systems to allow higher and higher charging rates over time as EVs attempt to approach the fuel fill-up times of an ICE at a gas station.
How all that fits into a home’s electrical loads remains to be seen. We completely re-wired our 1906 home when we moved into it, one part of which was upgrading the service to 400 amps, with 100 of that going to the detached garage. Many homes today have 100-amp service or even less (e.g., apartments), most newer homes seem to have 200-amp service, and moving forward that’ll probably be a minimum, at least in the US. Even at 200-amps, using 48 of that for vehicle charging is a pretty significant percentage of the total. OTOH, most high-amp charging is done overnight when other home loads other than HVAC are at their lowest. And of course, your mileage may vary.
Good luck with your vehicle, its charging, and let us all know what you decide and why.
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