2021 Kia K5 Review By TestDriveNow Car Critic Steve Hammes. Not long ago, the family sedan was the standard bearer of the auto industry. It’s where we Americans turned for our next ride and the competition was fierce. But as cars continue crossing over into SUVs the significance of the midsize sedan has been greatly diminished. Yet for those of you who have kept the candle burning, the choices have may have been reduced but the vehicles themselves are better than ever. Case in point; the car formerly known as the Optima – this is the all-new Kia K5.
So the K5 comes out of the gate with a new name, spunkier attitude and more polish.  It’s said you never get a second chance to make a first impression and this one has been stellar.  And that full-fledged GT model coming in November should be a real treat.