The issue you had with speed sign recognition wasn’t too bad when it saw a 40 limit on a 70 road as it would just decelerate with engine braking but a lot of the new hybrid/electric cars have/will have active /regenerative braking and will virtually slam the anchors on(like the systems with the new adaptive cruise control with full stop) and the line of cars behind that are just gonna hit you up the arse as a person can’t react as fast as a computer will be headline news, wonder how long it will last?(probably until the lawsuits start!)