[birken]

I've logged a lot of miles of Comma in a 2023 Hyundai Ioniq and 2022 Toyota Prius Prime, and the built in driving assist of both cars is nowhere near Comma, both in terms of steering and accelerator/brake.

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.

[consp]

> - 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.