I have a winding road near me with a speed limit of 35 mph, but 15 mph on certain curves as indicated by a speed limit sign. It ignores those speed limit signs and will attempt to make the turns at 35 mph resulting in it wildly swerving into the other lane and around a blind turn with maybe 30 feet of visibility. It has also attempted to do it so poorly that it would have driven across the lane and then over the cliff without immediate intervention.

Unsupported claims by a manufacturer that compulsively lies about the capabilities of their products except when directly called on it are the opposite of compelling evidence.