Although I have been that impressed with TACC performance in general (it's far too cautious when a car in front of you turns, usually bringing me to a complete halt, while at the same time driving full speed up to a stopped car then slamming on the brakes, etc) I wonder if it's even worse when the car is dirty (ie cameras are covered/obscured). I can tell the backup cam is significantly worse when it's covered in dirt, and wonder if this applies to other cameras and consequently effects system performance. Anyone else notice this?