Almost exactly a year ago, I bought a used 2021 e-Niro with 32,000 km on the clock (I'm from Europe, so I measure metrically, but e-Niros in Poland and America weren't much different). I was a little worried about a problem with the reduction gear and engine bearings, but so far, I haven't heard any distinctive noises. Right after buying it, I changed the transmission fluid and coolant, just to be on the safe side. I've driven about 12,000 km this year, so I'll change the fluid again in the spring. The only real issue I encountered involved replacing the 12V battery, which isn't surprising in a 4-year-old car that had been sitting at the dealership for over 2 years. Also, like the previous commenter, I'm having trouble with the charging port door sticking, but I have my own solution: I press the button on the remote with one hand and tap firmly on the locking pin with the other. It works flawlessly, though it may look a bit odd. This problem only occurs occasionally, and I'd like to have it fixed during the service. Another minor issue is the noisy central locking button on the driver's door armrest. On poor roads, it makes a rather loud clattering sound; it's clearly not very precise. Other than that, the car performs excellently, is comfortable, and well-equipped for its model year and market segment. If I'm missing anything, it's a heat pump (unfortunately, I couldn't find one on the market at the moment), and an electric tailgate release would be nice. The high-beam assist is rather sluggish, much like the phone app, but it's good that it's there at all. Now, during periods of severe frost, I bless the heated seats and steering wheel. A heated windshield would be nice. The car is reasonably fuel-efficient, but not as much as its twin, the Hyundai Kona electric, but long trips lose some of their appeal due to the relatively low maximum DC charging power of 77 kW. Well, this model was designed around 2016, which was quite a lot back then. When I bought it, I carefully inspected the chassis for corrosion, and while Korean brands, like Japanese ones, aren't exactly stellar in this regard, this particular example was completely free of corrosion, neither on suspension components, bolts, sheet metal edges, etc. Which was a pleasant surprise. What can I say? It's no coincidence that the KIA e-Niro from this series is probably the most recommended used electric car. It's well-equipped, quite fuel-efficient, dynamic enough, and at the same time, comfortable enough. The leather interior looks really good, and the multimedia is functional, though it requires learning the complicated and not always intuitive menu system. Acceleration is consistently good, with the exception of a limited top speed of 167 km/h, but driving that fast on the highway is pointless anyway, given the rapidly diminishing range. The high torque when starting off places significant demands on the drive axle tires, so dynamic starts from traffic lights often result in spinning, especially on wet or loose surfaces. Adjustable regenerative braking allows for almost One Pedal Driving, with the left paddle on the steering wheel providing the final stop. You can also "coast" by disabling recuperation. An automatic recuperation control setting is also available – something for everyone. The cruise control, lane-keeping, and following distance systems work efficiently, although regulations require keeping your hands on the steering wheel and periodic steering wheel movements. Capacitive sensors would be useful for this feature. In short, you get a lot for relatively little money, not much less than buying much newer models from other brands. For everyday driving around town with the occasional longer trip, it's the perfect car.