An officer with the Philadelphia Police Department's accident-investigation unit reached out to Jalopnik seeking help identifying a vehicle involved in a Saturday morning hit-and-run which left a 25-year-old woman badly injured.
As it stands, police have narrowed it down to "possibly a mid to early 2000s Pontiac."
Here's how the officer broke down the sequence of events (which are shown in the video below, as well):
The victim was traveling south on 2nd Street with a green light. The offender vehicle was traveling west on Westmoreland, entering/creeping into the intersection against a red light. The front end of the offender car contacts the driver's side of the victim's car.
The victim's car starts to rotate out, counterclockwise, impacts a parked car on its right.
The front passenger crashed through her window partially, exposing her arm, which also contacted the parked car. Her arm was nearly severed; the humerus shattered, the skin stripped away from below the shoulder to the elbow. Her arm was surgically reattached. We don't yet know if it will take or not.