I wanted to update this thread to say after about 13K miles on my car of mostly suburban driving, I did experience the car autonomously brake when I was NOT using ACC S&G . I had a situation and I could see the car in front would pull onto a side street. It was all happening under 50mph. My 2014 F07 fired the visual and audible collision warnings. I had my foot on the brake pedal and felt the pedal move and car brake. I was coasting and creeping up on the car in front but could tell the car in front would clear. I found the car's collision braking perfectly reasonable however.
