In this Friday, May 11, 2018, photo released by the South Jordan Police Department shows a traffic collision involving a Tesla Model S sedan with a Fire Department mechanic truck stopped at a red light in South Jordan, Utah. Witnesses indicated the Tesla Model S did not brake prior to impact. Police Sgt. Samuel Winkler said the car's air bags were activated and that the Tesla's 28-year-old driver suffered a broken right ankle, while the driver of the mechanic truck didn't require treatment. Police in a Salt Lake City suburb say it's not immediately known whether a Tesla Model S sedan's semi-autonomous Autopilot driving system was in use when it rear-ended a truck apparently without braking before impact at approximately 60 mph. (South Jordan Police Department via AP)