I find pre-sense works well, the only issue I have had is when you want approach a car that is turning left/right and pull out (around it) at the last second. T

I find pre-sense works well, the only issue I have had is when you want approach a car that is turning left/right and pull out (around it) at the last second. The car doesn't know you are both steering in the opposite directions to avoid the collision will either beep, or in one scenario has applied the breaks (only to remove them once the car in front was no longer in view). In general I really like the ACC, although it really high lights the inconsistency in other drivers speed (often for no apparent reason). It also isn't as clever as a driver, so you are constantly sat there observing things it can't and waiting for it to notice like a car about to pull into your lane. Another annoyance is that it will slow down for cars that you can see are moving out of your lane, or turning off, when continuing a the same speed would have been fine. I also have the auto dimming head lights, although they too are a little dumb. They respond to seeing the oncoming car's lights, by which time you have blinded the driver of the other car. They are not clever enough to see the lights coming around a corner, and also sometimes miss a motorbike, or mistake a reflective sign for a car. They also don't work at junctions :( Peraps next time I will drop the head lights for side assist.