The U.S. Insurance Institute for Highway Safety gave Tesla's Autopilot and Full Self-Driving technologies, along with nine other assisted-driving systems used by big manufacturers, "poor" grades in a new report that was issued on Tuesday.

Based on collision data, the IIHS, the insurance industry's safety research arm, likewise declared that there is no proof that Autopilot or other assisted-driving systems improve real-world safety.

We have access to data on insurance claims. There is no decrease in claims as a result of these more sophisticated systems, according to our analysis of cars with and without these (technologies), IIHS President David Harkey told Reuters.

In contrast, he stated that data shows automated emergency braking systems reduce vehicle-to-pedestrian accidents by 30 percent and rear-end crashes by 50 percent.

According to Tesla and Elon Musk, the company's CEO, a Tesla running on Autopilot is around five times safer than a Tesla without the technology activated and roughly ten times safer than the typical American car.

Authorities at the federal level are looking into about one thousand incidents when Tesla's Autopilot was activated. The newest test of Tesla's strategy, which blames crashes on drivers who disregard the EV maker's cautions to pay attention to the road while Autopilot or Full Self Driving technology is active, will take place in a civil lawsuit that is set to go to trial in California next week.