Authorities said the victim was crossing North Broad Street at West Susquehanna Avenue around 9:35 p.m. when they were hit by a dark-colored Nissan.
The victim was hospitalized in "extremely critical condition" with "severe injuries," PPD said.
The Nissan is said to be dark gray with a sunroof and possible damage to its front end. Three of its wheels are silver and the front-left wheel is black, detectives said.
Anyone with information is asked to call PPD at 215-686-8477 or submit a tip anonymously through the department's website.
Click here to follow Daily Voice Lower Merion-Narberth and receive free news updates.