The Lucid Air Touring rapidly accelerated from a full stop in a line of cars. (The traffic hold up was due to a road striping crew that stopped traffic.) My wife was the driver and I was in the passenger seat and the car was in drive/hold mode before suddenly taking off; the car in front of us was about 20' ahead. In spite of my wife's attempt to stop the vehicle, it would not stop until it hit the vehicle in front of us and pushed it into the vehicle in front of it. Additionally, the vehicle's built-in safety features to brake automatically in such a situation did not work. There was no pre-collision braking, no warning and no other automatic safety features activated. My wife is an excellent and experienced driver and drives frequently in heavy traffic without incident.