The incident occurred because the car in front of me made a sudden stop (there was a 3-car accident ahead of the car in front of me). In response to the sudden stop I hit the brakes hard on my car but my car failed to completely; it kept moving forward until I hit the car in front of me. I was not tailgating the car in front of me and had plenty of room to stop as I braked. Video recording from the Tesla showed the sufficient distance between my car and the car in front of me. I re-recorded using my phone, I can upload it for your review but the size is about 30MB and in .mov format