When this generation hit the market, it came in three trims to pick from. These trims are the LX, S, and EX. No matter the trim, you'll find that they all come equipped with the same 1.6L I4 that comes with a standard manual transmission, but has an optional automatic option.
While this engine is the strongest, making 130 horsepower, given the size of this model, it gives enough punch to feel like an extra-strong cup of coffee. Car and Driver also notes that the Rio has "one of the highest power ratings in its class". While that is fun, this model comes with an EPA rating of 32 MPG combined.
Being that this model is older, the features that it comes with at the release are a bit aged. You see this in the 5.0-inch display and four-speaker stereo. Some other features you can find are the SiriusXM satellite radio, an auxiliary jack, and USB and auxiliary inputs. While the higher level trims gain access to a 7.0-inch touchscreen, six-speaker audio, and Apple CarPlay and Android Auto support.
When the 2019 models hit the market, only 2 trims came with it as the EX was dropped. This left the LX and the S. This year also dropped the manual transmission, which, for most drivers, isn't a huge deal, but if you're someone who enjoys it, then you'll need to look for a fourth-generation release model.
The biggest change came in 2020, and it's no surprise that this model gained the Editor's choice from Car and Driver. This is thanks to both the LX and S trims both receiving a 7.0-inch touchscreen with Apple CarPlay and Android Auto capability.
The other largest change is the new engine. This is the 1.6L I4 that gets 120 horsepower and is paired with a CVT. While it is weaker, the 36 MPG combined will more than likely make up for that.
When 2021 came around, the models didn't really see much change. The only difference is a slight styling change to the front and the rear, as well as an enhanced infotainment system. The 2022 models were much of the same story. This is because it only came with an anti-theft security system improved with a standard engine immobilizer that prevents the car from being started with anything but the ignition key it came with.
With last year's models being the 2023 ones, Kia didn't really do much to change them, only seeing the addition of the oil-level sensor that will notify the driver should the oil level need replenishing.