There is no evidence that the car Paul Walker was riding in had been involved in a drag race.
This according to a law enforcement source, who told NBC News that the L.A. County Sheriff's Department's preliminary assessment is that the 2005 Porsche Carrera GT was traveling at approximately 40 to 45 miles per hour in a 45 mph zone and the driver apparently lost control while rounding a bend, where the speed limit dropped to 15 mph.
The Sheriff's Department had previously confirmed that people had reported seeing the Porsche traveling at a high speed and that no eyewitness had contacted authorities about seeing a second vehicle.
Authorities had previously noted that the crash location was a popular spot for street racing and, per CNN, an anonymous tipster had called authorities about a second car possibly being involved.
Investigators are now reportedly focused on the speed at which Roger Rodas, an experienced driver who co-owned custom car shop Always Evolving with Walker, was going when the car slammed into a light pole (which had a 45 mph sign attached to it) and burst into flames.
Walker and Rodas had spent the day at a toy drive and benefit for the actor's Reach Out Worldwide foundation when they decided to take the Porsche for what was supposed to be a quick test drive because it had been stalling when an event employee tried to back it into the garage.
Autopsies are tentatively scheduled for Tuesday, though the L.A. County Department of Medical Examiner-Coroner has told E! News that they are waiting on dental X-rays and have not yet officially identified the remains found at the site of the accident, so they can't confirm "100 percent" that it will take place tomorrow.