I got a three-year old EV and it's easily the best car I've had. Battery condition would be a concern for a 2013 car, the technology wasn't as good back then, but not a 2018 one. Hyundai (and sister brand Kia) have a seven-year transferable warranty. Browse the autotrader app a lot to see what you can get within 40 miles of your home so you know what's a good price. I bought from a dealership in the end, but not my local one, who tend to price a couple of grand above what I came to expect.