> - Not requiring me to touch the steering wheel every 20 seconds
In many countries doing this will void your insurance.
> - Sharp turns on the highway that require slowing down (both built-in adaptive cruise modes will gladly just drive you off a cliff at 65 mph)
While it's probably given that this will happen, it's also an infrastructural failure. Just place a limited speed limit sign way before the sharp turn, or fix the road so it doesn't make a sharp turn.
Things that Comma handles seamlessly that the built-in cruise in both cars will not:
- Full stop and go
- Sharp turns on the highway that require slowing down (both built-in adaptive cruise modes will gladly just drive you off a cliff at 65 mph)
- Situations where the lane lines are hard to see or are implied
- Non-highway driving
- Not requiring me to touch the steering wheel every 20 seconds
Maybe those things work in higher end cars (though I'd say the Ioniq is a fairly high-end car), but then again with Comma you get it for ~$2k in a ton of cars instead of having to buy a luxury car.
It is true that if you are on a highway, with clear lane lines, the steering assist in both cars is certainly a lot better than nothing, but it's just not nearly matching the reliability and versatility of Comma in any sort of imperfect situation.