So the Model 3 is the first car that I have had with any kind of adaptive cruise control... so I tried using it a few times. Noticed some behavior that made me less confident in using it:
- It has adjustable following distance, but even the largest following distance (setting of 7) seemed to be closer than I like. If I am behind a slower vehicle, I prefer to leave more following space, so that when a space opens up in the next lane, I can use the following space to accelerate as I merge into the next lane to pass.
- When approaching a slower vehicle ahead, it keeps the set speed until it reaches the set following distance and then abruptly slows down, rather than slowing down more gradually to match the slower vehicle's speed by the time the set following distance is reached.
- Once, while driving in the right lane of the freeway with three lanes each direction and no traffic (or anything but empty road) nearby ahead in any lane, it abruptly slowed down for no apparent reason.