Tesla on autopilot sped up seconds before Utah crash

A semi-autonomous Tesla car involved in a headline-making crash in Utah this month increased in speed by almost 10 kph just seconds before it smashed into a firetruck stopped at a red light. A police report of the incident says the electric Tesla Model S was on semi-autonomous Autopilot mode when it sped up from 55 mph (89 kph) to 60 mph (97 kph) in just 3.5 seconds before it hit the truck. Tesla CEO Elon Musk, who issued a scathing attack on media credibility yesterday, has been vocal against those who criticize Tesla cars, despite growing concern about their safety. Both drivers of the Tesla and firetruck were left injured in the accident that has raised more concerns over the safety of Elon Musk's vehicles Police understand the Tesla was initially travelling at 55 mph (89 kph) to match the speed of another vehicle that may have changed lane, according to a report seen by Associated Press. It is thought the car then automatically sped up to its preset of 60 mph (97 kph) without noticing the stopped cars ahead of it.