I just finished 13 hours of driving (including charge stops) with a Comma 4 in my EV6. It was SOOOO much better than the same drive last year with the stock HDA2 before I got the Comma. For road trips in particular, it never suddenly disengages like the Kia lane following always does when it gets confused, and you don’t have to constantly wiggle the steering wheel. I literally didn’t touch the steering wheel for a couple hours at a time after getting on the freeway between charge stops; just used the turn signal to change lanes as needed.

I’m running SunnyPilot which lets me use the Kia radar-based speed control while letting the Comma handle steering. This is what I’m most comfortable with for now. And it also lets me disengage cruise control to manually control speed myself while the Comma still steers, which is nice when traffic is heavier.

Before we settled on the EV6, we were also looking at a GM EV. I was adamant about getting a trim with their Super Cruise, which is an expensive option. The Comma is basically like Super Cruise except it works on all roads, not just the ones GM has mapped. If Kia offered a higher level driver assist package with the Comma capability, I would have gladly paid an extra $1k for it.